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cppcheck/test/testconstructors.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2014 Daniel Marjamäki and Cppcheck team.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tokenize.h"
#include "checkclass.h"
#include "testsuite.h"
#include <sstream>
extern std::ostringstream errout;
class TestConstructors : public TestFixture {
public:
TestConstructors() : TestFixture("TestConstructors") {
}
private:
void check(const char code[], bool showAll = false) {
// Clear the error buffer..
errout.str("");
Settings settings;
settings.inconclusive = showAll;
settings.addEnabled("style");
settings.addEnabled("warning");
// Tokenize..
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyTokenList2();
// Check class constructors..
CheckClass checkClass(&tokenizer, &settings, this);
checkClass.constructors();
}
void run() {
TEST_CASE(simple1);
TEST_CASE(simple2);
TEST_CASE(simple3);
TEST_CASE(simple4);
TEST_CASE(simple5); // ticket #2560
TEST_CASE(simple6); // ticket #4085 - uninstantiated template class
TEST_CASE(simple7); // ticket #4531
TEST_CASE(simple8);
TEST_CASE(simple9); // ticket #4574
TEST_CASE(simple10); // ticket #4388
TEST_CASE(simple11); // ticket #4536
TEST_CASE(simple12); // ticket #4620
TEST_CASE(initvar_with_this); // BUG 2190300
TEST_CASE(initvar_if); // BUG 2190290
TEST_CASE(initvar_operator_eq1); // BUG 2190376
TEST_CASE(initvar_operator_eq2); // BUG 2190376
TEST_CASE(initvar_operator_eq3);
TEST_CASE(initvar_operator_eq4); // ticket #2204
TEST_CASE(initvar_operator_eq5); // ticket #4119
TEST_CASE(initvar_same_classname); // BUG 2208157
TEST_CASE(initvar_chained_assign); // BUG 2270433
TEST_CASE(initvar_2constructors); // BUG 2270353
TEST_CASE(initvar_constvar);
TEST_CASE(initvar_staticvar);
TEST_CASE(initvar_union);
TEST_CASE(initvar_delegate); // ticket #4302
TEST_CASE(initvar_private_constructor); // BUG 2354171 - private constructor
TEST_CASE(initvar_copy_constructor); // ticket #1611
TEST_CASE(initvar_nested_constructor); // ticket #1375
TEST_CASE(initvar_nocopy1); // ticket #2474
TEST_CASE(initvar_nocopy2); // ticket #2484
TEST_CASE(initvar_nocopy3); // ticket #3611
TEST_CASE(initvar_with_member_function_this); // ticket #4824
TEST_CASE(initvar_destructor); // No variables need to be initialized in a destructor
TEST_CASE(initvar_func_ret_func_ptr); // ticket #4449
TEST_CASE(operatorEqSTL);
TEST_CASE(uninitVar1);
TEST_CASE(uninitVar2);
TEST_CASE(uninitVar3);
TEST_CASE(uninitVar4);
TEST_CASE(uninitVar5);
TEST_CASE(uninitVar6);
TEST_CASE(uninitVar7);
TEST_CASE(uninitVar8);
TEST_CASE(uninitVar9); // ticket #1730
TEST_CASE(uninitVar10); // ticket #1993
TEST_CASE(uninitVar11);
TEST_CASE(uninitVar12); // ticket #2078
TEST_CASE(uninitVar13); // ticket #1195
TEST_CASE(uninitVar14); // ticket #2149
TEST_CASE(uninitVar15);
TEST_CASE(uninitVar16);
TEST_CASE(uninitVar17);
TEST_CASE(uninitVar18); // ticket #2465
TEST_CASE(uninitVar19); // ticket #2792
TEST_CASE(uninitVar20); // ticket #2867
TEST_CASE(uninitVar21); // ticket #2947
TEST_CASE(uninitVar22); // ticket #3043
TEST_CASE(uninitVar23); // ticket #3702
TEST_CASE(uninitVar24); // ticket #3190
TEST_CASE(uninitVar25); // ticket #4789
TEST_CASE(uninitVar26);
TEST_CASE(uninitVar27); // ticket #5170 - rtl::math::setNan(&d)
TEST_CASE(uninitVarEnum);
TEST_CASE(uninitVarStream);
TEST_CASE(uninitVarTypedef);
TEST_CASE(uninitVarMemset);
TEST_CASE(uninitVarArray1);
TEST_CASE(uninitVarArray2);
TEST_CASE(uninitVarArray3);
TEST_CASE(uninitVarArray4);
TEST_CASE(uninitVarArray5);
TEST_CASE(uninitVarArray6);
TEST_CASE(uninitVarArray7);
TEST_CASE(uninitVarArray8);
TEST_CASE(uninitVarArray2D);
TEST_CASE(uninitVarArray3D);
TEST_CASE(uninitVarCpp11Init1);
TEST_CASE(uninitVarCpp11Init2);
TEST_CASE(uninitVarStruct1); // ticket #2172
TEST_CASE(uninitVarStruct2); // ticket #838
TEST_CASE(uninitVarUnion1); // ticket #3196
TEST_CASE(uninitVarUnion2);
TEST_CASE(uninitMissingFuncDef); // can't expand function in constructor
TEST_CASE(privateCtor1); // If constructor is private..
TEST_CASE(privateCtor2); // If constructor is private..
TEST_CASE(function); // Function is not variable
TEST_CASE(uninitVarHeader1); // Class is defined in header
TEST_CASE(uninitVarHeader2); // Class is defined in header
TEST_CASE(uninitVarHeader3); // Class is defined in header
TEST_CASE(uninitVarPublished); // Borland C++: Variables in the published section are auto-initialized
TEST_CASE(uninitOperator); // No FP about uninitialized 'operator[]'
TEST_CASE(uninitFunction1); // No FP when initialized in function
TEST_CASE(uninitFunction2); // No FP when initialized in function
TEST_CASE(uninitFunction3); // No FP when initialized in function
TEST_CASE(uninitFunction4);
TEST_CASE(uninitFunction5);
TEST_CASE(uninitSameClassName); // No FP when two classes have the same name
TEST_CASE(uninitFunctionOverload); // No FP when there are overloaded functions
TEST_CASE(uninitVarOperatorEqual); // ticket #2415
TEST_CASE(uninitVarPointer); // ticket #3801
TEST_CASE(uninitConstVar);
}
void simple1() {
check("class Fred\n"
"{\n"
"public:\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"private:\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:1]: (style) The class 'Fred' does not have a constructor.\n", errout.str());
check("struct Fred\n"
"{\n"
"private:\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:1]: (style) The struct 'Fred' does not have a constructor.\n", errout.str());
}
void simple2() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() : i(0) { }\n"
" Fred(Fred const & other) : i(other.i) {}\n"
" Fred(Fred && other) : i(other.i) {}\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { i = 0; }\n"
" Fred(Fred const & other) {i=other.i}\n"
" Fred(Fred && other) {i=other.i}\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { }\n"
" Fred(Fred const & other) {}\n"
" Fred(Fred && other) {}\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n"
"[test.cpp:5]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n"
"[test.cpp:6]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
check("struct Fred\n"
"{\n"
" Fred() { }\n"
" Fred(Fred const & other) {}\n"
" Fred(Fred && other) {}\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:3]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n"
"[test.cpp:4]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n"
"[test.cpp:5]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
void simple3() {
check("struct Fred\n"
"{\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred() :i(0)\n"
"{ }");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ i = 0; }");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ }");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
void simple4() {
check("struct Fred\n"
"{\n"
" Fred();\n"
" explicit Fred(int _i);\n"
" Fred(Fred const & other);\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ }\n"
"Fred::Fred(int _i)\n"
"{\n"
" i = _i;\n"
"}\n", true);
ASSERT_EQUALS("[test.cpp:8]: (warning, inconclusive) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
void simple5() { // ticket #2560
check("namespace Nsp\n"
"{\n"
" class B { };\n"
"}\n"
"class Altren : public Nsp::B\n"
"{\n"
"public:\n"
" Altren () : Nsp::B(), mValue(0)\n"
" {\n"
" }\n"
"private:\n"
" int mValue;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void simple6() { // ticket #4085 - uninstantiated template class
check("template <class T> struct A {\n"
" A<T>() { x = 0; }\n"
" A<T>(const T & t) { x = t.x; }\n"
"private:\n"
" int x;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("template <class T> struct A {\n"
" A<T>() : x(0) { }\n"
" A<T>(const T & t) : x(t.x) { }\n"
"private:\n"
" int x;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("template <class T> struct A {\n"
" A<T>() : x(0) { }\n"
" A<T>(const T & t) : x(t.x) { }\n"
"private:\n"
" int x;\n"
" int y;\n"
"};");
ASSERT_EQUALS("[test.cpp:2]: (warning) Member variable 'A::y' is not initialized in the constructor.\n"
"[test.cpp:3]: (warning) Member variable 'A::y' is not initialized in the constructor.\n", errout.str());
}
void simple7() { // ticket #4531
check("class Fred;\n"
"struct Fred {\n"
" int x;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void simple8() {
check("struct Fred { int x; };\n"
"class Barney { Fred fred; };\n"
"class Wilma { struct Betty { int x; } betty; };");
ASSERT_EQUALS("[test.cpp:2]: (style) The class 'Barney' does not have a constructor.\n"
"[test.cpp:3]: (style) The class 'Wilma' does not have a constructor.\n", errout.str());
}
void simple9() { // ticket #4574
check("class Unknown::Fred {\n"
"public:\n"
" Fred() : x(0) { }\n"
"private:\n"
" int x;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void simple10() { // ticket #4388
check("class Fred {\n"
"public:\n"
" Fred() = default;\n"
"private:\n"
" int x;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void simple11() { // ticket #4536
check("class Fred {\n"
"public:\n"
" Fred() {}\n"
"private:\n"
" int x = 0;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void simple12() { // ticket #4620
check("class Fred {\n"
" int x;\n"
"public:\n"
" Fred() { Init(); }\n"
" void Init(int i = 0);\n"
"};\n"
"void Fred::Init(int i) { x = i; }");
ASSERT_EQUALS("", errout.str());
check("class Fred {\n"
" int x;\n"
" int y;\n"
"public:\n"
" Fred() { Init(0); }\n"
" void Init(int i, int j = 0);\n"
"};\n"
"void Fred::Init(int i, int j) { x = i; y = j; }");
ASSERT_EQUALS("", errout.str());
}
void initvar_with_this() {
check("struct Fred\n"
"{\n"
" Fred()\n"
" { this->i = 0; }\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_if() {
check("struct Fred\n"
"{\n"
" Fred()\n"
" {\n"
" if (true)\n"
" i = 0;\n"
" else\n"
" i = 1;\n"
" }\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_operator_eq1() {
// Bug 2190376 and #3820 - False positive, Uninitialized member variable with operator=
check("struct Fred\n"
"{\n"
" int i;\n"
"\n"
" Fred()\n"
" { i = 0; }\n"
"\n"
" Fred(const Fred &fred)\n"
" { *this = fred; }\n"
"\n"
" const Fred & operator=(const Fred &fred)\n"
" { i = fred.i; return *this; }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct Fred {\n"
" int i;\n"
"\n"
" Fred(const Fred &fred)\n"
" { (*this) = fred; }\n"
"\n"
" const Fred & operator=(const Fred &fred)\n"
" { i = fred.i; return *this; }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct A\n"
"{\n"
" A() : i(0), j(0) {}\n"
"\n"
" A &operator=(const int &value)\n"
" {\n"
" i = value;\n"
" return (*this);\n"
" }\n"
"\n"
" int i;\n"
" int j;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_operator_eq2() {
check("struct Fred\n"
"{\n"
" Fred() { i = 0; }\n"
" void operator=(const Fred &fred) { }\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::i' is not assigned a value in 'Fred::operator='.\n", errout.str());
}
void initvar_operator_eq3() {
check("struct Fred\n"
"{\n"
" Fred() { Init(); }\n"
" void operator=(const Fred &fred) { Init(); }\n"
"private:\n"
" void Init() { i = 0; }\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_operator_eq4() {
check("class Fred\n"
"{\n"
" int i;\n"
"public:\n"
" Fred() : i(5) { }\n"
" Fred & operator=(const Fred &fred)\n"
" {\n"
" if (&fred != this)\n"
" {\n"
" }\n"
" return *this\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'Fred::i' is not assigned a value in 'Fred::operator='.\n", errout.str());
check("class Fred\n"
"{\n"
" int * i;\n"
"public:\n"
" Fred() : i(NULL) { }\n"
" Fred & operator=(const Fred &fred)\n"
" {\n"
" if (&fred != this)\n"
" {\n"
" }\n"
" return *this\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'Fred::i' is not assigned a value in 'Fred::operator='.\n", errout.str());
check("class Fred\n"
"{\n"
" const int * i;\n"
"public:\n"
" Fred() : i(NULL) { }\n"
" Fred & operator=(const Fred &fred)\n"
" {\n"
" if (&fred != this)\n"
" {\n"
" }\n"
" return *this\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'Fred::i' is not assigned a value in 'Fred::operator='.\n", errout.str());
check("class Fred\n"
"{\n"
" const int i;\n"
"public:\n"
" Fred() : i(5) { }\n"
" Fred & operator=(const Fred &fred)\n"
" {\n"
" if (&fred != this)\n"
" {\n"
" }\n"
" return *this\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_operator_eq5() { // #4119 - false positive when using swap to assign variables
check("class Fred {\n"
" int i;\n"
"public:\n"
" Fred() : i(5) { }\n"
" ~Fred() { }\n"
" Fred(const Fred &fred) : i(fred.i) { }\n"
" Fred & operator=(const Fred &rhs) {\n"
" Fred(rhs).swap(*this);\n"
" return *this;\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_same_classname() {
// Bug 2208157 - False positive: Uninitialized variable, same class name
check("void func1()\n"
"{\n"
" class Fred\n"
" {\n"
" int a;\n"
" Fred() { a = 0; }\n"
" };\n"
"}\n"
"\n"
"void func2()\n"
"{\n"
" class Fred\n"
" {\n"
" int b;\n"
" Fred() { b = 0; }\n"
" };\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void func1()\n"
"{\n"
" struct Fred\n"
" {\n"
" int a;\n"
" Fred() { a = 0; }\n"
" };\n"
"}\n"
"\n"
"void func2()\n"
"{\n"
" class Fred\n"
" {\n"
" int b;\n"
" Fred() { b = 0; }\n"
" };\n"
"}");
ASSERT_EQUALS("", errout.str());
check("void func1()\n"
"{\n"
" struct Fred\n"
" {\n"
" int a;\n"
" Fred() { a = 0; }\n"
" };\n"
"}\n"
"\n"
"void func2()\n"
"{\n"
" struct Fred\n"
" {\n"
" int b;\n"
" Fred() { b = 0; }\n"
" };\n"
"}");
ASSERT_EQUALS("", errout.str());
check("class Foo {\n"
" void func1()\n"
" {\n"
" struct Fred\n"
" {\n"
" int a;\n"
" Fred() { a = 0; }\n"
" };\n"
" }\n"
"\n"
" void func2()\n"
" {\n"
" struct Fred\n"
" {\n"
" int b;\n"
" Fred() { b = 0; }\n"
" };\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Foo {\n"
" void func1()\n"
" {\n"
" struct Fred\n"
" {\n"
" int a;\n"
" Fred() { }\n"
" };\n"
" }\n"
"\n"
" void func2()\n"
" {\n"
" struct Fred\n"
" {\n"
" int b;\n"
" Fred() { }\n"
" };\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Fred::a' is not initialized in the constructor.\n"
"[test.cpp:16]: (warning) Member variable 'Fred::b' is not initialized in the constructor.\n", errout.str());
}
void initvar_chained_assign() {
// Bug 2270433 - Uninitialized variable false positive on chained assigns
check("struct c\n"
"{\n"
" c();\n"
"\n"
" int m_iMyInt1;\n"
" int m_iMyInt2;\n"
"}\n"
"\n"
"c::c()\n"
"{\n"
" m_iMyInt1 = m_iMyInt2 = 0;\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void initvar_2constructors() {
check("struct c\n"
"{\n"
" c();\n"
" explicit c(bool b);"
"\n"
" void InitInt();\n"
"\n"
" int m_iMyInt;\n"
" int m_bMyBool;\n"
"}\n"
"\n"
"c::c()\n"
"{\n"
" m_bMyBool = false;\n"
" InitInt();"
"}\n"
"\n"
"c::c(bool b)\n"
"{\n"
" m_bMyBool = b;\n"
" InitInt();\n"
"}\n"
"\n"
"void c::InitInt()\n"
"{\n"
" m_iMyInt = 0;\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void initvar_constvar() {
check("struct Fred\n"
"{\n"
" const char *s;\n"
" Fred();\n"
"};\n"
"Fred::Fred() : s(NULL)\n"
"{ }");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" const char *s;\n"
" Fred();\n"
"};\n"
"Fred::Fred()\n"
"{ s = NULL; }");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" const char *s;\n"
" Fred();\n"
"};\n"
"Fred::Fred()\n"
"{ }");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'Fred::s' is not initialized in the constructor.\n", errout.str());
}
void initvar_staticvar() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { }\n"
" static void *p;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_union() {
check("class Fred\n"
"{\n"
" union\n"
" {\n"
" int a;\n"
" char b[4];\n"
" } U;\n"
"public:\n"
" Fred()\n"
" {\n"
" U.a = 0;\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
" union\n"
" {\n"
" int a;\n"
" char b[4];\n"
" } U;\n"
"public:\n"
" Fred()\n"
" {\n"
" }\n"
"};");
TODO_ASSERT_EQUALS("[test.cpp:9]: (warning) Member variable 'Fred::U' is not initialized in the constructor.\n", "", errout.str());
}
void initvar_delegate() {
check("class A {\n"
" int number;\n"
"public:\n"
" A(int n) { }\n"
" A() : A(42) {}\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'A::number' is not initialized in the constructor.\n"
"[test.cpp:5]: (warning) Member variable 'A::number' is not initialized in the constructor.\n", errout.str());
check("class A {\n"
" int number;\n"
"public:\n"
" A(int n) { number = n; }\n"
" A() : A(42) {}\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class A {\n"
" int number;\n"
"public:\n"
" A(int n) : A() { }\n"
" A() {}\n"
"};", true);
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'A::number' is not initialized in the constructor.\n"
"[test.cpp:5]: (warning, inconclusive) Member variable 'A::number' is not initialized in the constructor.\n", errout.str());
check("class A {\n"
" int number;\n"
"public:\n"
" A(int n) : A() { }\n"
" A() { number = 42; }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_private_constructor() {
check("class Fred\n"
"{\n"
"private:\n"
" int var;\n"
" Fred();\n"
"};\n"
"Fred::Fred()\n"
"{ }");
ASSERT_EQUALS("", errout.str());
}
void initvar_copy_constructor() { // ticket #1611
check("class Fred\n"
"{\n"
"private:\n"
" std::string var;\n"
"public:\n"
" Fred() { };\n"
" Fred(const Fred &) { };\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"private:\n"
" std::string var;\n"
"public:\n"
" Fred() { };\n"
" Fred(const Fred &) { };\n"
"};", true);
ASSERT_EQUALS("[test.cpp:7]: (warning, inconclusive) Member variable 'Fred::var' is not initialized in the constructor.\n", errout.str());
check("class Fred\n"
"{\n"
"private:\n"
" std::string var;\n"
"public:\n"
" Fred();\n"
" Fred(const Fred &);\n"
"};\n"
"Fred::Fred() { };\n"
"Fred::Fred(const Fred &) { };\n", true);
ASSERT_EQUALS("[test.cpp:10]: (warning, inconclusive) Member variable 'Fred::var' is not initialized in the constructor.\n", errout.str());
}
void initvar_nested_constructor() { // ticket #1375
check("class A {\n"
"public:\n"
" A();\n"
" struct B {\n"
" explicit B(int x);\n"
" struct C {\n"
" explicit C(int y);\n"
" struct D {\n"
" int d;\n"
" explicit D(int z);\n"
" };\n"
" int c;\n"
" };\n"
" int b;\n"
" };\n"
"private:\n"
" int a;\n"
" B b;\n"
"};\n"
"A::A(){}\n"
"A::B::B(int x){}\n"
"A::B::C::C(int y){}\n"
"A::B::C::D::D(int z){}");
// Note that the example code is not compilable. The A constructor must
// explicitly initialize A::b. A warning for A::b is not necessary.
ASSERT_EQUALS("[test.cpp:20]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:21]: (warning) Member variable 'B::b' is not initialized in the constructor.\n"
"[test.cpp:22]: (warning) Member variable 'C::c' is not initialized in the constructor.\n"
"[test.cpp:23]: (warning) Member variable 'D::d' is not initialized in the constructor.\n", errout.str());
check("class A {\n"
"public:\n"
" A();\n"
" struct B {\n"
" explicit B(int x);\n"
" struct C {\n"
" explicit C(int y);\n"
" struct D {\n"
" D(const D &);\n"
" int d;\n"
" };\n"
" int c;\n"
" };\n"
" int b;\n"
" };\n"
"private:\n"
" int a;\n"
" B b;\n"
"};\n"
"A::A(){}\n"
"A::B::B(int x){}\n"
"A::B::C::C(int y){}\n"
"A::B::C::D::D(const A::B::C::D & d){}");
// Note that the example code is not compilable. The A constructor must
// explicitly initialize A::b. A warning for A::b is not necessary.
ASSERT_EQUALS("[test.cpp:20]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:21]: (warning) Member variable 'B::b' is not initialized in the constructor.\n"
"[test.cpp:22]: (warning) Member variable 'C::c' is not initialized in the constructor.\n"
"[test.cpp:23]: (warning) Member variable 'D::d' is not initialized in the constructor.\n", errout.str());
check("class A {\n"
"public:\n"
" A();\n"
" struct B {\n"
" explicit B(int x);\n"
" struct C {\n"
" explicit C(int y);\n"
" struct D {\n"
" struct E { int e; };\n"
" struct E d;\n"
" explicit D(const E &);\n"
" };\n"
" int c;\n"
" };\n"
" int b;\n"
" };\n"
"private:\n"
" int a;\n"
" B b;\n"
"};\n"
"A::A(){}\n"
"A::B::B(int x){}\n"
"A::B::C::C(int y){}\n"
"A::B::C::D::D(const A::B::C::D::E & e){}");
// Note that the example code is not compilable. The A constructor must
// explicitly initialize A::b. A warning for A::b is not necessary.
ASSERT_EQUALS("[test.cpp:21]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:22]: (warning) Member variable 'B::b' is not initialized in the constructor.\n"
"[test.cpp:23]: (warning) Member variable 'C::c' is not initialized in the constructor.\n"
"[test.cpp:24]: (warning) Member variable 'D::d' is not initialized in the constructor.\n", errout.str());
}
void initvar_nocopy1() { // ticket #2474
check("class B\n"
"{\n"
" B (const B & Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" A(A &&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class B\n"
"{\n"
" B (B && Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" A(A &&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class B\n"
"{\n"
" B & operator= (const B & Var);\n"
"public:\n"
" B ();\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" A(A &&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class B\n"
"{\n"
"public:\n"
" B (const B & Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" A(A &&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("[test.cpp:11]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n"
"[test.cpp:12]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n"
"[test.cpp:13]: (warning) Member variable 'A::m_SemVar' is not assigned a value in 'A::operator='.\n", errout.str());
check("class B\n"
"{\n"
"public:\n"
" B (B && Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" A(A &&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("[test.cpp:12]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n", errout.str());
check("class B\n"
"{\n"
"public:\n"
" B ();\n"
" B & operator= (const B & Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" A(A &&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("[test.cpp:12]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n"
"[test.cpp:13]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n"
"[test.cpp:14]: (warning) Member variable 'A::m_SemVar' is not assigned a value in 'A::operator='.\n", errout.str());
check("class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_nocopy2() { // ticket #2484
check("class B\n"
"{\n"
" B (B & Var);\n"
" B & operator= (const B & Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class B\n"
"{\n"
"public:\n"
" B (B & Var);\n"
" B & operator= (const B & Var);\n"
"};\n"
"class A\n"
"{\n"
" B m_SemVar;\n"
"public:\n"
" A(){}\n"
" A(const A&){}\n"
" const A& operator=(const A&){return *this;}\n"
"};");
ASSERT_EQUALS("[test.cpp:12]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n"
"[test.cpp:13]: (warning) Member variable 'A::m_SemVar' is not assigned a value in 'A::operator='.\n", errout.str());
}
void initvar_nocopy3() { // #3611 - unknown type is non-copyable
check("struct A {\n"
" B b;\n"
" A() {}\n"
" A(const A& rhs) {}\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct A {\n"
" B b;\n"
" A() {}\n"
" A(const A& rhs) {}\n"
"};", true);
ASSERT_EQUALS("[test.cpp:4]: (warning, inconclusive) Member variable 'A::b' is not initialized in the constructor.\n", errout.str());
}
void initvar_with_member_function_this() {
check("struct Foo {\n"
" Foo(int m) { this->setMember(m); }\n"
" void setMember(int m) { member = m; }\n"
" int member;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_destructor() {
check("class Fred\n"
"{\n"
"private:\n"
" int var;\n"
"public:\n"
" Fred() : var(0) {}\n"
" ~Fred() {}\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void initvar_func_ret_func_ptr() { // ticket #4449 (segmentation fault)
check("class something {\n"
" int * ( something :: * process()) () { return 0; }\n"
" something() { process(); }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void operatorEqSTL() {
check("class Fred\n"
"{\n"
"private:\n"
" std::vector<int> ints;\n"
"public:\n"
" Fred();\n"
" void operator=(const Fred &f);\n"
"};\n"
"\n"
"Fred::Fred()\n"
"{ }\n"
"\n"
"void Fred::operator=(const Fred &f)\n"
"{ }", true);
ASSERT_EQUALS("[test.cpp:13]: (warning, inconclusive) Member variable 'Fred::ints' is not assigned a value in 'Fred::operator='.\n", errout.str());
}
void uninitVar1() {
check("enum ECODES\n"
"{\n"
" CODE_1 = 0,\n"
" CODE_2 = 1\n"
"};\n"
"\n"
"class Fred\n"
"{\n"
"public:\n"
" Fred() {}\n"
"\n"
"private:\n"
" ECODES _code;\n"
"};");
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'Fred::_code' is not initialized in the constructor.\n", errout.str());
check("class A{};\n"
"\n"
"class B : public A\n"
"{\n"
"public:\n"
" B() {}\n"
"private:\n"
" float f;\n"
"};");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'B::f' is not initialized in the constructor.\n", errout.str());
check("class C\n"
"{\n"
" FILE *fp;\n"
"\n"
"public:\n"
" explicit C(FILE *fp);\n"
"};\n"
"\n"
"C::C(FILE *fp) {\n"
" C::fp = fp;\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVar2() {
check("class John\n"
"{\n"
"public:\n"
" John() { (*this).i = 0; }\n"
"private:\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar3() {
// No FP when struct has constructor
check("class Foo\n"
"{\n"
"public:\n"
" Foo() { }\n"
"private:\n"
" struct Bar {\n"
" Bar();\n"
" };\n"
" Bar bars[2];\n"
"};");
ASSERT_EQUALS("", errout.str());
// Using struct that doesn't have constructor
check("class Foo\n"
"{\n"
"public:\n"
" Foo() { }\n"
"private:\n"
" struct Bar {\n"
" int x;\n"
" };\n"
" Bar bars[2];\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Foo::bars' is not initialized in the constructor.\n", errout.str());
}
void uninitVar4() {
check("class Foo\n"
"{\n"
"public:\n"
" Foo() { bar.x = 0; }\n"
"private:\n"
" struct Bar {\n"
" int x;\n"
" };\n"
" struct Bar bar;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar5() {
check("class Foo\n"
"{\n"
"public:\n"
" Foo() { }\n"
" Foo &operator=(const Foo &)\n"
" { return *this; }\n"
" static int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar6() {
check("class Foo : public Bar\n"
"{\n"
"public:\n"
" explicit Foo(int i) : Bar(mi=i) { }\n"
"private:\n"
" int mi;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar7() {
check("class Foo {\n"
" int a;\n"
"public:\n"
" Foo() : a(0) {}\n"
" Foo& operator=(const Foo&);\n"
" void Swap(Foo& rhs);\n"
"};\n"
"\n"
"void Foo::Swap(Foo& rhs) {\n"
" std::swap(a,rhs.a);\n"
"}\n"
"\n"
"Foo& Foo::operator=(const Foo& rhs) {\n"
" Foo copy(rhs);\n"
" copy.Swap(*this);\n"
" return *this;\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVar8() {
check("class Foo {\n"
" int a;\n"
"public:\n"
" Foo() : a(0) {}\n"
" Foo& operator=(const Foo&);\n"
"};\n"
"\n"
"Foo& Foo::operator=(const Foo& rhs) {\n"
" if (&rhs != this)\n"
" {\n"
" }\n"
" return *this;\n"
"}");
ASSERT_EQUALS("[test.cpp:8]: (warning) Member variable 'Foo::a' is not assigned a value in 'Foo::operator='.\n", errout.str());
}
void uninitVar9() { // ticket #1730
check("class Prefs {\n"
"private:\n"
" int xasd;\n"
"public:\n"
" explicit Prefs(wxSize size);\n"
"};\n"
"Prefs::Prefs(wxSize size)\n"
"{\n"
" SetMinSize( wxSize( 48,48 ) );\n"
"}");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Prefs::xasd' is not initialized in the constructor.\n", errout.str());
}
void uninitVar10() { // ticket #1993
check("class A {\n"
"public:\n"
" A();\n"
"private:\n"
" int var1;\n"
" int var2;\n"
"};\n"
"A::A() : var1(0) { }");
ASSERT_EQUALS("[test.cpp:8]: (warning) Member variable 'A::var2' is not initialized in the constructor.\n", errout.str());
}
void uninitVar11() {
check("class A {\n"
"public:\n"
" explicit A(int a = 0);\n"
"private:\n"
" int var;\n"
"};\n"
"A::A(int a) { }");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'A::var' is not initialized in the constructor.\n", errout.str());
}
void uninitVar12() { // ticket #2078
check("class Point\n"
"{\n"
"public:\n"
" Point()\n"
" {\n"
" Point(0, 0);\n"
" }\n"
" Point(int x, int y)\n"
" : x(x), y(y)\n"
" {}\n"
" int x, y;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Point::x' is not initialized in the constructor.\n"
"[test.cpp:4]: (warning) Member variable 'Point::y' is not initialized in the constructor.\n", errout.str());
}
void uninitVar13() { // ticket #1195
check("class A {\n"
"private:\n"
" std::vector<int> *ints;\n"
"public:\n"
" A()\n"
" {}\n"
"};");
ASSERT_EQUALS("[test.cpp:5]: (warning) Member variable 'A::ints' is not initialized in the constructor.\n", errout.str());
}
void uninitVar14() { // ticket #2149
// no namespace
check("class Foo\n"
"{\n"
"public:\n"
" Foo();\n"
"private:\n"
" bool mMember;\n"
"};\n"
"Foo::Foo()\n"
"{\n"
"}");
ASSERT_EQUALS("[test.cpp:8]: (warning) Member variable 'Foo::mMember' is not initialized in the constructor.\n", errout.str());
// single namespace
check("namespace Output\n"
"{\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
" Foo::Foo()\n"
" {\n"
" }\n"
"}");
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'Foo::mMember' is not initialized in the constructor.\n", errout.str());
// constructor outside namespace
check("namespace Output\n"
"{\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
"}\n"
"Foo::Foo()\n"
"{\n"
"}");
ASSERT_EQUALS("", errout.str());
// constructor outside namespace
check("namespace Output\n"
"{\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
"}\n"
"Output::Foo::Foo()\n"
"{\n"
"}");
ASSERT_EQUALS("[test.cpp:11]: (warning) Member variable 'Foo::mMember' is not initialized in the constructor.\n", errout.str());
// constructor in separate namespace
check("namespace Output\n"
"{\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
"}\n"
"namespace Output\n"
"{\n"
" Foo::Foo()\n"
" {\n"
" }\n"
"}");
ASSERT_EQUALS("[test.cpp:13]: (warning) Member variable 'Foo::mMember' is not initialized in the constructor.\n", errout.str());
// constructor in different separate namespace
check("namespace Output\n"
"{\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
"}\n"
"namespace Input\n"
"{\n"
" Foo::Foo()\n"
" {\n"
" }\n"
"}");
ASSERT_EQUALS("", errout.str());
// constructor in different separate namespace (won't compile)
check("namespace Output\n"
"{\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
"}\n"
"namespace Input\n"
"{\n"
" Output::Foo::Foo()\n"
" {\n"
" }\n"
"}");
ASSERT_EQUALS("", errout.str());
// constructor in nested separate namespace
check("namespace A\n"
"{\n"
" namespace Output\n"
" {\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
" }\n"
" namespace Output\n"
" {\n"
" Foo::Foo()\n"
" {\n"
" }\n"
" }\n"
"}");
ASSERT_EQUALS("[test.cpp:15]: (warning) Member variable 'Foo::mMember' is not initialized in the constructor.\n", errout.str());
// constructor in nested different separate namespace
check("namespace A\n"
"{\n"
" namespace Output\n"
" {\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
" }\n"
" namespace Input\n"
" {\n"
" Foo::Foo()\n"
" {\n"
" }\n"
" }\n"
"}");
ASSERT_EQUALS("", errout.str());
// constructor in nested different separate namespace
check("namespace A\n"
"{\n"
" namespace Output\n"
" {\n"
" class Foo\n"
" {\n"
" public:\n"
" Foo();\n"
" private:\n"
" bool mMember;\n"
" };\n"
" }\n"
" namespace Input\n"
" {\n"
" Output::Foo::Foo()\n"
" {\n"
" }\n"
" }\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVar15() {
check("class Fred\n"
"{\n"
" int a;\n"
"public:\n"
" Fred();\n"
" ~Fred();\n"
"};\n"
"Fred::~Fred()\n"
"{\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVar16() {
check("struct Foo\n"
"{\n"
" int a;\n"
" void set(int x) { a = x; }\n"
"};\n"
"class Bar\n"
"{\n"
" Foo foo;\n"
"public:\n"
" Bar()\n"
" {\n"
" foo.set(0);\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct Foo\n"
"{\n"
" int a;\n"
" void set(int x) { a = x; }\n"
"};\n"
"class Bar\n"
"{\n"
" Foo foo;\n"
"public:\n"
" Bar()\n"
" {\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'Bar::foo' is not initialized in the constructor.\n", errout.str());
}
void uninitVar17() {
check("struct Foo\n"
"{\n"
" int a;\n"
"};\n"
"class Bar\n"
"{\n"
" Foo foo[10];\n"
"public:\n"
" Bar()\n"
" {\n"
" foo[0].a = 0;\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct Foo\n"
"{\n"
" int a;\n"
"};\n"
"class Bar\n"
"{\n"
" Foo foo[10];\n"
"public:\n"
" Bar()\n"
" {\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:9]: (warning) Member variable 'Bar::foo' is not initialized in the constructor.\n", errout.str());
}
void uninitVar18() { // ticket #2465
check("struct Altren\n"
"{\n"
" explicit Altren(int _a = 0) : value(0) { }\n"
" int value;\n"
"};\n"
"class A\n"
"{\n"
"public:\n"
" A() { }\n"
"private:\n"
" Altren value;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar19() { // ticket #2792
check("class mystring\n"
"{\n"
" char* m_str;\n"
" int m_len;\n"
"public:\n"
" explicit mystring(const char* str)\n"
" {\n"
" m_len = strlen(str);\n"
" m_str = (char*) malloc(m_len+1);\n"
" memcpy(m_str, str, m_len+1);\n"
" }\n"
" mystring& operator=(const mystring& copy)\n"
" {\n"
" return (*this = copy.m_str);\n"
" }\n"
" ~mystring()\n"
" {\n"
" free(m_str);\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar20() { // ticket #2867
check("Object::MemFunc() {\n"
" class LocalClass {\n"
" public:\n"
" LocalClass() : dataLength_(0) {}\n"
" std::streamsize dataLength_;\n"
" double bitsInData_;\n"
" } obj;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'LocalClass::bitsInData_' is not initialized in the constructor.\n", errout.str());
check("Object::MemFunc() {\n"
" class LocalClass : public copy_protected {\n"
" public:\n"
" LocalClass() : copy_protected(1), dataLength_(0) {}\n"
" std::streamsize dataLength_;\n"
" double bitsInData_;\n"
" } obj;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'LocalClass::bitsInData_' is not initialized in the constructor.\n", errout.str());
check("Object::MemFunc() {\n"
" class LocalClass : ::copy_protected {\n"
" public:\n"
" LocalClass() : copy_protected(1), dataLength_(0) {}\n"
" std::streamsize dataLength_;\n"
" double bitsInData_;\n"
" } obj;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'LocalClass::bitsInData_' is not initialized in the constructor.\n", errout.str());
}
void uninitVar21() { // ticket #2947
check("class Fred {\n"
"private:\n"
" int a[23];\n"
"public:\n"
" Fred();\n"
"};\n"
"Fred::Fred() {\n"
" a[x::y] = 0;\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVar22() { // ticket #3043
check("class Fred {\n"
" public:\n"
" Fred & operator=(const Fred &);\n"
" virtual Fred & clone(const Fred & other);\n"
" int x;\n"
"};\n"
"Fred & Fred::operator=(const Fred & other) {\n"
" return clone(other);\n"
"}\n"
"Fred & Fred::clone(const Fred & other) {\n"
" x = 0;\n"
" return *this;\n"
"}");
ASSERT_EQUALS("", errout.str());
check("class Fred {\n"
" public:\n"
" Fred & operator=(const Fred &);\n"
" virtual Fred & clone(const Fred & other);\n"
" int x;\n"
"};\n"
"Fred & Fred::operator=(const Fred & other) {\n"
" return clone(other);\n"
"}\n"
"Fred & Fred::clone(const Fred & other) {\n"
" return *this;\n"
"}");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Fred::x' is not assigned a value in 'Fred::operator='.\n", errout.str());
}
void uninitVar23() { // ticket #3702
check("class Fred {\n"
" int x;\n"
"public:\n"
" Fred(struct A a, struct B b);\n"
" Fred(C c, struct D d);\n"
" Fred(struct E e, F f);\n"
" Fred(struct G, struct H);\n"
" Fred(I, J);\n"
"};\n"
"Fred::Fred(A a, B b) { }\n"
"Fred::Fred(struct C c, D d) { }\n"
"Fred::Fred(E e, struct F f) { }\n"
"Fred::Fred(G g, H h) { }\n"
"Fred::Fred(struct I i, struct J j) { }\n"
);
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'Fred::x' is not initialized in the constructor.\n"
"[test.cpp:11]: (warning) Member variable 'Fred::x' is not initialized in the constructor.\n"
"[test.cpp:12]: (warning) Member variable 'Fred::x' is not initialized in the constructor.\n"
"[test.cpp:13]: (warning) Member variable 'Fred::x' is not initialized in the constructor.\n"
"[test.cpp:14]: (warning) Member variable 'Fred::x' is not initialized in the constructor.\n", errout.str());
}
void uninitVar24() { // ticket #3190
check("class Foo;\n"
"class Bar;\n"
"class Sub;\n"
"class Foo { class Sub; };\n"
"class Bar { class Sub; };\n"
"class Bar::Sub {\n"
" int b;\n"
"public:\n"
" Sub() { }\n"
" Sub(int);\n"
"};\n"
"Bar::Sub::Sub(int) { };\n"
"class ::Foo::Sub {\n"
" int f;\n"
"public:\n"
" ~Sub();\n"
" Sub();\n"
"};\n"
"::Foo::Sub::~Sub() { }\n"
"::Foo::Sub::Sub() { }\n"
"class Foo;\n"
"class Bar;\n"
"class Sub;\n", true);
ASSERT_EQUALS("[test.cpp:9]: (warning, inconclusive) Member variable 'Sub::b' is not initialized in the constructor.\n"
"[test.cpp:12]: (warning) Member variable 'Sub::b' is not initialized in the constructor.\n"
"[test.cpp:20]: (warning) Member variable 'Sub::f' is not initialized in the constructor.\n", errout.str());
}
void uninitVar25() { // ticket #4789
check("struct A {\n"
" int a;\n"
" int b;\n"
" int c;\n"
" A(int x = 0, int y = 0, int z = 0);\n"
"};\n"
"A::A(int x = 0, int y = 0, int z = 0) { } \n"
"struct B {\n"
" int a;\n"
" int b;\n"
" int c;\n"
" B(int x = 0, int y = 0, int z = 0);\n"
"};\n"
"B::B(int x, int y, int z) { } \n"
"struct C {\n"
" int a;\n"
" int b;\n"
" int c;\n"
" C(int, int, int);\n"
"};\n"
"C::C(int x = 0, int y = 0, int z = 0) { } \n"
"struct D {\n"
" int a;\n"
" int b;\n"
" int c;\n"
" D(int, int, int);\n"
"};\n"
"D::D(int x, int y, int z) { } \n"
"struct E {\n"
" int a;\n"
" int b;\n"
" int c;\n"
" E(int x, int y, int z);\n"
"};\n"
"E::E(int, int, int) { } \n"
"struct F {\n"
" int a;\n"
" int b;\n"
" int c;\n"
" F(int x = 0, int y = 0, int z = 0);\n"
"};\n"
"F::F(int, int, int) { }\n", true);
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:7]: (warning) Member variable 'A::b' is not initialized in the constructor.\n"
"[test.cpp:7]: (warning) Member variable 'A::c' is not initialized in the constructor.\n"
"[test.cpp:14]: (warning) Member variable 'B::a' is not initialized in the constructor.\n"
"[test.cpp:14]: (warning) Member variable 'B::b' is not initialized in the constructor.\n"
"[test.cpp:14]: (warning) Member variable 'B::c' is not initialized in the constructor.\n"
"[test.cpp:21]: (warning) Member variable 'C::a' is not initialized in the constructor.\n"
"[test.cpp:21]: (warning) Member variable 'C::b' is not initialized in the constructor.\n"
"[test.cpp:21]: (warning) Member variable 'C::c' is not initialized in the constructor.\n"
"[test.cpp:28]: (warning) Member variable 'D::a' is not initialized in the constructor.\n"
"[test.cpp:28]: (warning) Member variable 'D::b' is not initialized in the constructor.\n"
"[test.cpp:28]: (warning) Member variable 'D::c' is not initialized in the constructor.\n"
"[test.cpp:35]: (warning) Member variable 'E::a' is not initialized in the constructor.\n"
"[test.cpp:35]: (warning) Member variable 'E::b' is not initialized in the constructor.\n"
"[test.cpp:35]: (warning) Member variable 'E::c' is not initialized in the constructor.\n"
"[test.cpp:42]: (warning) Member variable 'F::a' is not initialized in the constructor.\n"
"[test.cpp:42]: (warning) Member variable 'F::b' is not initialized in the constructor.\n"
"[test.cpp:42]: (warning) Member variable 'F::c' is not initialized in the constructor.\n", errout.str());
}
void uninitVar26() {
check("class A {\n"
" int * v;\n"
" int sz;\n"
"public:\n"
" A(int s) {\n"
" v = new int [sz = s];\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVar27() {
check("class A {\n"
" double d;\n"
"public:\n"
" A() {\n"
" rtl::math::setNan(&d);\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class A {\n"
" double d;\n"
"public:\n"
" A() {\n"
" ::rtl::math::setNan(&d);\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray1() {
check("class John\n"
"{\n"
"public:\n"
" John() {}\n"
"\n"
"private:\n"
" char name[255];\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'John::name' is not initialized in the constructor.\n", errout.str());
check("class John\n"
"{\n"
"public:\n"
" John() {John::name[0] = '\\0';}\n"
"\n"
"private:\n"
" char name[255];\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class John\n"
"{\n"
"public:\n"
" John() { strcpy(name, \"\"); }\n"
"\n"
"private:\n"
" char name[255];\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class John\n"
"{\n"
"public:\n"
" John() { }\n"
"\n"
" double operator[](const unsigned long i);\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class A;\n"
"class John\n"
"{\n"
"public:\n"
" John() { }\n"
" A a[5];\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class A;\n"
"class John\n"
"{\n"
"public:\n"
" John() { }\n"
" A *a[5];\n"
"};");
ASSERT_EQUALS("[test.cpp:5]: (warning) Member variable 'John::a' is not initialized in the constructor.\n", errout.str());
}
void uninitVarArray2() {
check("class John\n"
"{\n"
"public:\n"
" John() { *name = 0; }\n"
"\n"
"private:\n"
" char name[255];\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray3() {
check("class John\n"
"{\n"
"private:\n"
" int a[100];\n"
" int b[100];\n"
"\n"
"public:\n"
" John()\n"
" {\n"
" memset(a,0,sizeof(a));\n"
" memset(b,0,sizeof(b));\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray4() {
check("class John\n"
"{\n"
"private:\n"
" int a[100];\n"
" int b[100];\n"
"\n"
"public:\n"
" John()\n"
" {\n"
" if (snprintf(a,10,\"a\")) { }\n"
" if (snprintf(b,10,\"b\")) { }\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray5() {
check("class Foo\n"
"{\n"
"private:\n"
" Bar bars[10];\n"
"public:\n"
" Foo()\n"
" { }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray6() {
check("class Foo\n"
"{\n"
"public:\n"
" Foo();\n"
" static const char STR[];\n"
"};\n"
"const char Foo::STR[] = \"abc\";\n"
"Foo::Foo() { }");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray7() {
check("class Foo\n"
"{\n"
" int array[10];\n"
"public:\n"
" Foo() { }\n"
"};");
ASSERT_EQUALS("[test.cpp:5]: (warning) Member variable 'Foo::array' is not initialized in the constructor.\n", errout.str());
check("class Foo\n"
"{\n"
" int array[10];\n"
"public:\n"
" Foo() { memset(array, 0, sizeof(array)); }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Foo\n"
"{\n"
" int array[10];\n"
"public:\n"
" Foo() { ::memset(array, 0, sizeof(array)); }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray8() {
check("class Foo {\n"
" char a[10];\n"
"public:\n"
" Foo() { ::ZeroMemory(a); }\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray2D() {
check("class John\n"
"{\n"
"public:\n"
" John() { a[0][0] = 0; }\n"
"\n"
"private:\n"
" char a[2][2];\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarArray3D() {
check("class John\n"
"{\n"
"private:\n"
" char a[2][2][2];\n"
"public:\n"
" John() { a[0][0][0] = 0; }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarCpp11Init1() {
check("class Foo {\n"
" std::vector<std::string> bar;\n"
"public:\n"
" Foo()\n"
" : bar({\"a\", \"b\"})\n"
" {}\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarCpp11Init2() {
check("class Fred {\n"
" struct Foo {\n"
" int a;\n"
" bool b;\n"
" };\n"
" Foo f;\n"
" float g;\n"
"public:\n"
" Fred() : f{0, true} { }\n"
" float get() const\n"
"};\n"
"float Fred::get() const { return g; }");
ASSERT_EQUALS("[test.cpp:9]: (warning) Member variable 'Fred::g' is not initialized in the constructor.\n", errout.str());
}
void uninitVarStruct1() { // ticket #2172
check("class A\n"
"{\n"
"private:\n"
" struct B {\n"
" std::string str1;\n"
" std::string str2;\n"
" }\n"
" struct B b;\n"
"public:\n"
" A() {\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class A\n"
"{\n"
"private:\n"
" struct B {\n"
" char *str1;\n"
" char *str2;\n"
" }\n"
" struct B b;\n"
"public:\n"
" A() {\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'A::b' is not initialized in the constructor.\n", errout.str());
check("class A\n"
"{\n"
"private:\n"
" struct B {\n"
" char *str1;\n"
" char *str2;\n"
" B() : str1(NULL), str2(NULL) { }\n"
" }\n"
" struct B b;\n"
"public:\n"
" A() {\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarStruct2() { // ticket #838
check("struct POINT\n"
"{\n"
" int x;\n"
" int y;\n"
"};\n"
"class Fred\n"
"{\n"
"private:\n"
" POINT p;\n"
"public:\n"
" Fred()\n"
" { }\n"
"};");
ASSERT_EQUALS("[test.cpp:11]: (warning) Member variable 'Fred::p' is not initialized in the constructor.\n", errout.str());
check("struct POINT\n"
"{\n"
" int x;\n"
" int y;\n"
" POINT();\n"
"};\n"
"class Fred\n"
"{\n"
"private:\n"
" POINT p;\n"
"public:\n"
" Fred()\n"
" { }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct POINT\n"
"{\n"
" int x;\n"
" int y;\n"
" POINT() :x(0), y(0) { }\n"
"};\n"
"class Fred\n"
"{\n"
"private:\n"
" POINT p;\n"
"public:\n"
" Fred()\n"
" { }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarUnion1() { // ticket #3196
check("class Fred\n"
"{\n"
"private:\n"
" union { int a; int b; };\n"
"public:\n"
" Fred()\n"
" { a = 0; }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarUnion2() {
// If the "data_type" is 0 it means union member "data" is invalid.
// So it's ok to not initialize "data".
// related forum: http://sourceforge.net/apps/phpbb/cppcheck/viewtopic.php?f=3&p=1806
check("union Data { int id; int *ptr; };\n"
"\n"
"class Fred {\n"
"private:\n"
" int data_type;\n"
" Data data;\n"
"public:\n"
" Fred() : data_type(0)\n"
" { }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitMissingFuncDef() {
// Unknown member function
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { Init(); }\n"
"private:\n"
" void Init();"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
// Unknown non-member function (friend class)
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { Init(); }\n"
"private:\n"
" friend ABC;\n"
" int i;\n"
"};");
ASSERT_EQUALS("", errout.str());
// Unknown non-member function (is Init a virtual function?)
check("class Fred : private ABC\n"
"{\n"
"public:\n"
" Fred() { Init(); }\n"
"private:\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
// Unknown non-member function
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { Init(); }\n"
"private:\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
// Unknown non-member function
check("class ABC { };\n"
"class Fred : private ABC\n"
"{\n"
"public:\n"
" Fred() { Init(); }\n"
"private:\n"
" int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:5]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
void uninitVarEnum() {
check("class Fred\n"
"{\n"
"public:\n"
" enum abc {a,b,c};\n"
" Fred() {}\n"
"private:\n"
" unsigned int i;\n"
"};");
ASSERT_EQUALS("[test.cpp:5]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
void uninitVarStream() {
check("class Foo\n"
"{\n"
"private:\n"
" int foo;\n"
"public:\n"
" explicit Foo(std::istream &in)\n"
" {\n"
" if(!(in >> foo))\n"
" throw 0;\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarTypedef() {
check("class Foo\n"
"{\n"
"public:\n"
" typedef int * pointer;\n"
" Foo() : a(0) {}\n"
" pointer a;\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitVarMemset() {
check("class Foo\n"
"{\n"
"public:\n"
" int * pointer;\n"
" Foo() { memset(this, 0, sizeof(*this)); }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Foo\n"
"{\n"
"public:\n"
" int * pointer;\n"
" Foo() { ::memset(this, 0, sizeof(*this)); }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void privateCtor1() {
check("class Foo {\n"
" int foo;\n"
" Foo() { }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void privateCtor2() {
check("class Foo\n"
"{\n"
"private:\n"
" int foo;\n"
" Foo() { }\n"
"public:\n"
" explicit Foo(int _i) { }\n"
"};");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Foo::foo' is not initialized in the constructor.\n", errout.str());
}
void function() {
check("class A\n"
"{\n"
"public:\n"
" A();\n"
" int* f(int*);\n"
"};\n"
"\n"
"A::A()\n"
"{\n"
"}\n"
"\n"
"int* A::f(int* p)\n"
"{\n"
" return p;\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitVarHeader1() {
check("#file \"fred.h\"\n"
"class Fred\n"
"{\n"
"private:\n"
" unsigned int i;\n"
"public:\n"
" Fred();\n"
"};\n"
"#endfile");
ASSERT_EQUALS("", errout.str());
}
void uninitVarHeader2() {
check("#file \"fred.h\"\n"
"class Fred\n"
"{\n"
"private:\n"
" unsigned int i;\n"
"public:\n"
" Fred() { }\n"
"};\n"
"#endfile");
ASSERT_EQUALS("[fred.h:6]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
void uninitVarHeader3() {
check("#file \"fred.h\"\n"
"class Fred\n"
"{\n"
"private:\n"
" mutable int i;\n"
"public:\n"
" Fred() { }\n"
"};\n"
"#endfile");
ASSERT_EQUALS("[fred.h:6]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
}
// Borland C++: No FP for published pointers - they are automatically initialized
void uninitVarPublished() {
check("class Fred\n"
"{\n"
"__published:\n"
" int *i;\n"
"public:\n"
" Fred() { }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitOperator() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { }\n"
" int *operator [] (int index) { return 0; }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitFunction1() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { init(*this); }\n"
"\n"
" static void init(Fred &f)\n"
" { f.d = 0; }\n"
"\n"
" double d;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { init(*this); }\n"
"\n"
" static void init(Fred &f)\n"
" { }\n"
"\n"
" double d;\n"
"};");
TODO_ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::d' is not initialized in the constructor.\n", "", errout.str());
}
void uninitFunction2() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { if (!init(*this)); }\n"
"\n"
" static bool init(Fred &f)\n"
" { f.d = 0; return true; }\n"
"\n"
" double d;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { if (!init(*this)); }\n"
"\n"
" static bool init(Fred &f)\n"
" { return true; }\n"
"\n"
" double d;\n"
"};");
TODO_ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::d' is not initialized in the constructor.\n", "", errout.str());
}
void uninitFunction3() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { if (!init()); }\n"
"\n"
" bool init()\n"
" { d = 0; return true; }\n"
"\n"
" double d;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { if (!init()); }\n"
"\n"
" bool init()\n"
" { return true; }\n"
"\n"
" double d;\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::d' is not initialized in the constructor.\n", errout.str());
}
void uninitFunction4() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { init(this); }\n"
"\n"
" init(Fred *f)\n"
" { f.d = 0; }\n"
"\n"
" double d;\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { init(this); }\n"
"\n"
" init(Fred *f)\n"
" { }\n"
"\n"
" double d;\n"
"};");
TODO_ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::d' is not initialized in the constructor.\n", "", errout.str());
}
void uninitFunction5() { // #4072 - FP about struct that is initialized in function
check("struct Structure {\n"
" int C;\n"
"};\n"
"\n"
"class A {\n"
" Structure B;\n"
"public:\n"
" A() { Init( B ); };\n"
" void Init( Structure& S ) { S.C = 0; };\n"
"};");
ASSERT_EQUALS("", errout.str());
}
void uninitSameClassName() {
check("class B\n"
"{\n"
"public:\n"
" B();\n"
" int j;\n"
"};\n"
"\n"
"class A\n"
"{\n"
" class B\n"
" {\n"
" public:\n"
" B();\n"
" int i;\n"
" };\n"
"};\n"
"\n"
"A::B::B()\n"
"{\n"
" i = 0;\n"
"}");
ASSERT_EQUALS("", errout.str());
check("class B\n"
"{\n"
"public:\n"
" B();\n"
" int j;\n"
"};\n"
"\n"
"class A\n"
"{\n"
" class B\n"
" {\n"
" public:\n"
" B();\n"
" int i;\n"
" };\n"
"};\n"
"\n"
"B::B()\n"
"{\n"
"}\n"
"\n"
"A::B::B()\n"
"{\n"
"}");
ASSERT_EQUALS("[test.cpp:18]: (warning) Member variable 'B::j' is not initialized in the constructor.\n"
"[test.cpp:22]: (warning) Member variable 'B::i' is not initialized in the constructor.\n", errout.str());
// Ticket #1700
check("namespace n1\n"
"{\n"
"class Foo {"
"public:\n"
" Foo() : i(0) { }\n"
"private:\n"
" int i;\n"
"};\n"
"}\n"
"\n"
"namespace n2\n"
"{\n"
"class Foo {"
"public:\n"
" Foo() { }\n"
"};\n"
"}");
ASSERT_EQUALS("", errout.str());
check("namespace n1\n"
"{\n"
"class Foo {\n"
"public:\n"
" Foo();\n"
"private:\n"
" int i;\n"
"};\n"
"}\n"
"\n"
"n1::Foo::Foo()\n"
"{ }\n"
"\n"
"namespace n2\n"
"{\n"
"class Foo {\n"
"public:\n"
" Foo() { }\n"
"};\n"
"}");
ASSERT_EQUALS("[test.cpp:11]: (warning) Member variable 'Foo::i' is not initialized in the constructor.\n", errout.str());
check("namespace n1\n"
"{\n"
"class Foo {"
"public:\n"
" Foo();\n"
"private:\n"
" int i;\n"
"};\n"
"}\n"
"\n"
"n1::Foo::Foo() : i(0)\n"
"{ }\n"
"\n"
"namespace n2\n"
"{\n"
"class Foo {"
"public:\n"
" Foo() { }\n"
"};\n"
"}");
ASSERT_EQUALS("", errout.str());
}
void uninitFunctionOverload() {
// Ticket #1783 - overloaded "init" functions
check("class A\n"
"{\n"
"private:\n"
" int i;\n"
"\n"
"public:\n"
" A()\n"
" {\n"
" init();\n"
" }\n"
"\n"
" void init() { init(0); }\n"
"\n"
" void init(int value)\n"
" { i = value; }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("class A\n"
"{\n"
"private:\n"
" int i;\n"
"\n"
"public:\n"
" A()\n"
" {\n"
" init();\n"
" }\n"
"\n"
" void init() { init(0); }\n"
"\n"
" void init(int value)\n"
" { }\n"
"};");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'A::i' is not initialized in the constructor.\n", errout.str());
}
void uninitVarOperatorEqual() { // ticket #2415
check("struct A {\n"
" int a;\n"
" A() { a=0; }\n"
" A(A const &a) { operator=(a); }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct A {\n"
" int a;\n"
" A() { a=0; }\n"
" A(A const &a) { operator=(a); }\n"
" A & operator = (const A & rhs) {\n"
" a = rhs.a;\n"
" return *this;\n"
" }\n"
"};");
ASSERT_EQUALS("", errout.str());
check("struct A {\n"
" int a;\n"
" A() { a=0; }\n"
" A(A const &a) { operator=(a); }\n"
" A & operator = (const A & rhs) {\n"
" return *this;\n"
" }\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:5]: (warning) Member variable 'A::a' is not assigned a value in 'A::operator='.\n", errout.str());
}
void uninitVarPointer() { // #3801
check("struct A {\n"
" int a;\n"
"};\n"
"struct B {\n"
" A* a;\n"
" B() { }\n"
"};");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'B::a' is not initialized in the constructor.\n", errout.str());
check("struct A;\n"
"struct B {\n"
" A* a;\n"
" B() { }\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'B::a' is not initialized in the constructor.\n", errout.str());
check("struct A;\n"
"struct B {\n"
" const A* a;\n"
" B() { }\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'B::a' is not initialized in the constructor.\n", errout.str());
check("struct A;\n"
"struct B {\n"
" A* const a;\n"
" B() { }\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'B::a' is not initialized in the constructor.\n", errout.str());
}
void uninitConstVar() {
check("struct A;\n"
"struct B {\n"
" A* const a;\n"
" B() { }\n"
" B(B& b) { }\n"
"};");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'B::a' is not initialized in the constructor.\n"
"[test.cpp:5]: (warning) Member variable 'B::a' is not initialized in the constructor.\n", errout.str());
check("struct A;\n"
"struct B {\n"
" A* const a;\n"
" B& operator=(const B& r) { }\n"
"};");
ASSERT_EQUALS("", errout.str()); // #3804
check("struct B {\n"
" const int a;\n"
" B() { }\n"
" B(B& b) { }\n"
"};");
ASSERT_EQUALS("[test.cpp:3]: (warning) Member variable 'B::a' is not initialized in the constructor.\n"
"[test.cpp:4]: (warning) Member variable 'B::a' is not initialized in the constructor.\n", errout.str());
check("struct B {\n"
" const int a;\n"
" B& operator=(const B& r) { }\n"
"};");
ASSERT_EQUALS("", errout.str());
}
};
REGISTER_TEST(TestConstructors)
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