cppcheck/test/testconstructors.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2011 Daniel Marjamäki and Cppcheck team.
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*
* 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/>.
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*/
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#include "tokenize.h"
#include "checkclass.h"
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#include "testsuite.h"
#include <sstream>
extern std::ostringstream errout;
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class TestConstructors : public TestFixture {
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public:
TestConstructors() : TestFixture("TestConstructors")
{ }
private:
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void check(const char code[], bool showAll = false) {
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// Clear the error buffer..
errout.str("");
Settings settings;
settings.inconclusive = showAll;
settings.addEnabled("style");
// Tokenize..
Tokenizer tokenizer(&settings, this);
std::istringstream istr(code);
tokenizer.tokenize(istr, "test.cpp");
tokenizer.simplifyTokenList();
// Check class constructors..
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CheckClass checkClass(&tokenizer, &settings, this);
checkClass.constructors();
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}
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void run() {
TEST_CASE(simple1);
TEST_CASE(simple2);
TEST_CASE(simple3);
TEST_CASE(simple4);
TEST_CASE(simple5); // ticket #2560
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_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_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_destructor); // No variables need to be initialized in a destructor
TEST_CASE(operatorEqSTL);
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}
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void simple1() {
check("class Fred\n"
"{\n"
"public:\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"private:\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("[test.cpp:1]: (style) The class 'Fred' does not have a constructor.\n", errout.str());
check("struct Fred\n"
"{\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
"private:\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("[test.cpp:1]: (style) The struct 'Fred' does not have a constructor.\n", errout.str());
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}
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void simple2() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() : i(0) { }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { i = 0; }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
check("struct Fred\n"
"{\n"
" Fred() : i(0) { }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred() { i = 0; }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred() { }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("[test.cpp:3]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
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}
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void simple3() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred() :i(0)\n"
"{ }\n");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ i = 0; }\n");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ }\n");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
check("struct Fred\n"
"{\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred() :i(0)\n"
"{ }\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ i = 0; }\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred();\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ }\n");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
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}
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void simple4() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred();\n"
" explicit Fred(int _i);\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ }\n"
"Fred::Fred(int _i)\n"
"{\n"
" i = _i;\n"
"}\n");
ASSERT_EQUALS("[test.cpp:8]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
check("struct Fred\n"
"{\n"
" Fred();\n"
" explicit Fred(int _i);\n"
" int i;\n"
"};\n"
"Fred::Fred()\n"
"{ }\n"
"Fred::Fred(int _i)\n"
"{\n"
" i = _i;\n"
"}\n");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Fred::i' is not initialized in the constructor.\n", errout.str());
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}
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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());
}
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void initvar_with_this() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred()\n"
" { this->i = 0; }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
" Fred()\n"
" { this->i = 0; }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
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}
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void initvar_if() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred()\n"
" {\n"
" if (true)\n"
" i = 0;\n"
" else\n"
" i = 1;\n"
" }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
check("struct Fred\n"
"{\n"
"public:\n"
" Fred()\n"
" {\n"
" if (true)\n"
" i = 0;\n"
" else\n"
" i = 1;\n"
" }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
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}
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void initvar_operator_eq1() {
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// Bug 2190376 - False positive, Uninitialized member variable with operator=
check("class Fred\n"
"{\n"
"private:\n"
" int i;\n"
"\n"
"public:\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"
"};\n");
ASSERT_EQUALS("", errout.str());
check("class A\n"
"{\n"
" public:\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"
"};\n"
"\n"
"int main() {}\n");
ASSERT_EQUALS("", errout.str());
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"
"};\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"
"};\n"
"\n"
"int main() {}\n");
ASSERT_EQUALS("", errout.str());
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}
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void initvar_operator_eq2() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { i = 0; }\n"
" void operator=(const Fred &fred) { }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("[test.cpp:5]: (warning) Member variable 'Fred::i' is not assigned a value in 'Fred::operator='\n", errout.str());
check("struct Fred\n"
"{\n"
" Fred() { i = 0; }\n"
" void operator=(const Fred &fred) { }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("[test.cpp:4]: (warning) Member variable 'Fred::i' is not assigned a value in 'Fred::operator='\n", errout.str());
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}
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void initvar_operator_eq3() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { Init(); }\n"
" void operator=(const Fred &fred) { Init(); }\n"
"private:\n"
" void Init() { i = 0; }\n"
" int i;\n"
"};\n");
ASSERT_EQUALS("", errout.str());
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"
"};\n");
ASSERT_EQUALS("", errout.str());
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}
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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"
"};\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"
"};\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"
"};\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"
"};\n");
ASSERT_EQUALS("", errout.str());
}
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void initvar_same_classname() {
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// 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"
"}\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"
"}\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"
"}\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"
"};\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"
"};\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());
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}
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void initvar_chained_assign() {
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// Bug 2270433 - Uninitialized variable false positive on chained assigns
check("class 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"
"}\n");
ASSERT_EQUALS("", errout.str());
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"
"}\n");
ASSERT_EQUALS("", errout.str());
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}
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void initvar_2constructors() {
check("class 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"
"}\n");
ASSERT_EQUALS("", errout.str());
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"
"}\n");
ASSERT_EQUALS("", errout.str());
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}
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void initvar_constvar() {
check("class Fred\n"
"{\n"
"public:\n"
" const char *s;\n"
" Fred();\n"
"};\n"
"Fred::Fred() : s(NULL)\n"
"{ }");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" const char *s;\n"
" Fred();\n"
"};\n"
"Fred::Fred()\n"
"{ s = NULL; }");
ASSERT_EQUALS("", errout.str());
check("class Fred\n"
"{\n"
"public:\n"
" const char *s;\n"
" Fred();\n"
"};\n"
"Fred::Fred()\n"
"{ }");
ASSERT_EQUALS("[test.cpp:7]: (warning) Member variable 'Fred::s' is not initialized in the constructor.\n", errout.str());
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());
}
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void initvar_staticvar() {
check("class Fred\n"
"{\n"
"public:\n"
" Fred() { }\n"
" static void *p;\n"
"};\n");
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ASSERT_EQUALS("", errout.str());
}
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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"
"};\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"
"};\n");
TODO_ASSERT_EQUALS("[test.cpp:9]: (warning) Member variable 'Fred::U' is not initialized in the constructor.\n", "", errout.str());
}
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void initvar_private_constructor() {
check("class Fred\n"
"{\n"
"private:\n"
" int var;\n"
" Fred();\n"
"};\n"
"Fred::Fred()\n"
"{ }");
ASSERT_EQUALS("", errout.str());
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}
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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("[test.cpp:7]: (warning) 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");
ASSERT_EQUALS("[test.cpp:10]: (warning) Member variable 'Fred::var' is not initialized in the constructor.\n", errout.str());
}
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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){}\n");
ASSERT_EQUALS("[test.cpp:20]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:20]: (warning) Member variable 'A::b' 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){}\n");
ASSERT_EQUALS("[test.cpp:20]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:20]: (warning) Member variable 'A::b' 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"
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" 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){}\n");
ASSERT_EQUALS("[test.cpp:21]: (warning) Member variable 'A::a' is not initialized in the constructor.\n"
"[test.cpp:21]: (warning) Member variable 'A::b' 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());
}
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void initvar_nocopy1() { // ticket #2474
check("class B\n"
"{\n"
" B (const 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"
"};\n");
ASSERT_EQUALS("", errout.str());
check("class B\n"
"{\n"
"public:\n"
" B (const 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"
"};\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());
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"
"};\n");
ASSERT_EQUALS("[test.cpp:6]: (warning) Member variable 'A::m_SemVar' is not initialized in the constructor.\n"
"[test.cpp:7]: (warning) Member variable 'A::m_SemVar' is not assigned a value in 'A::operator='\n", errout.str());
}
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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"
"};\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"
"};\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());
}
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void initvar_destructor() {
check("class Fred\n"
"{\n"
"private:\n"
" int var;\n"
"public:\n"
" Fred() : var(0) {}\n"
" ~Fred() {}\n"
"};\n");
ASSERT_EQUALS("", errout.str());
}
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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) Member variable 'Fred::ints' is not assigned a value in 'Fred::operator='\n", errout.str());
}
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};
REGISTER_TEST(TestConstructors)