750 lines
25 KiB
C++
750 lines
25 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2022 Cppcheck team.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "checkother.h"
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#include "errortypes.h"
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#include "settings.h"
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#include "testsuite.h"
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#include "tokenize.h"
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#include <iosfwd>
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#include <map>
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#include <string>
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#include <utility>
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#include <vector>
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#include <simplecpp.h>
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class TestIncompleteStatement : public TestFixture {
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public:
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TestIncompleteStatement() : TestFixture("TestIncompleteStatement") {}
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private:
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Settings settings;
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void check(const char code[], bool inconclusive = false) {
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// Clear the error buffer..
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errout.str("");
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settings.certainty.setEnabled(Certainty::inconclusive, inconclusive);
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// Raw tokens..
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std::vector<std::string> files(1, "test.cpp");
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std::istringstream istr(code);
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const simplecpp::TokenList tokens1(istr, files, files[0]);
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// Preprocess..
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simplecpp::TokenList tokens2(files);
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std::map<std::string, simplecpp::TokenList*> filedata;
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simplecpp::preprocess(tokens2, tokens1, files, filedata, simplecpp::DUI());
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// Tokenize..
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Tokenizer tokenizer(&settings, this);
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tokenizer.createTokens(std::move(tokens2));
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tokenizer.simplifyTokens1("");
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// Check for incomplete statements..
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CheckOther checkOther(&tokenizer, &settings, this);
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checkOther.checkIncompleteStatement();
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}
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void run() override {
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settings.severity.enable(Severity::warning);
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TEST_CASE(test1);
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TEST_CASE(test2);
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TEST_CASE(test3);
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TEST_CASE(test4);
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TEST_CASE(test5);
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TEST_CASE(test6);
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TEST_CASE(test7);
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TEST_CASE(test_numeric);
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TEST_CASE(void0); // #6327: No fp for statement "(void)0;"
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TEST_CASE(intarray);
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TEST_CASE(structarraynull);
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TEST_CASE(structarray);
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TEST_CASE(conditionalcall); // ; 0==x ? X() : Y();
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TEST_CASE(structinit); // #2462 : ABC abc{1,2,3};
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TEST_CASE(returnstruct);
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TEST_CASE(cast); // #3009 : (struct Foo *)123.a = 1;
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TEST_CASE(increment); // #3251 : FP for increment
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TEST_CASE(cpp11init); // #5493 : int i{1};
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TEST_CASE(cpp11init2); // #8449
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TEST_CASE(cpp11init3); // #8995
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TEST_CASE(block); // ({ do_something(); 0; })
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TEST_CASE(mapindex);
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TEST_CASE(commaoperator1);
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TEST_CASE(commaoperator2);
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TEST_CASE(redundantstmts);
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TEST_CASE(vardecl);
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TEST_CASE(archive); // ar & x
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TEST_CASE(ast);
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TEST_CASE(oror); // dostuff() || x=32;
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}
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void test1() {
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check("void foo()\n"
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"{\n"
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" const char def[] =\n"
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" \"abc\";\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void test2() {
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check("void foo()\n"
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"{\n"
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" \"abc\";\n"
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"}");
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ASSERT_EQUALS("[test.cpp:3]: (warning) Redundant code: Found a statement that begins with string constant.\n", errout.str());
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}
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void test3() {
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check("void foo()\n"
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"{\n"
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" const char *str[] = { \"abc\" };\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void test4() {
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check("void foo()\n"
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"{\n"
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"const char *a =\n"
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"{\n"
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"\"hello \"\n"
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"\"more \"\n"
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"\"world\"\n"
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"};\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void test5() {
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check("void foo()\n"
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"{\n"
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" 50;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:3]: (warning) Redundant code: Found a statement that begins with numeric constant.\n", errout.str());
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}
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void test6() {
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// don't crash
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check("void f() {\n"
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" 1 == (two + three);\n"
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" 2 != (two + three);\n"
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" (one + two) != (two + three);\n"
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"}");
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}
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void test7() { // #9335
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check("namespace { std::string S = \"\"; }\n"
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"\n"
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"class C {\n"
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"public:\n"
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" explicit C(const std::string& s);\n"
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"};\n"
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"\n"
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"void f() {\n"
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" for (C c(S); ; ) {\n"
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" (void)c;\n"
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" }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void test_numeric() {
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check("struct P {\n"
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" double a;\n"
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" double b;\n"
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"};\n"
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"void f() {\n"
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" const P values[2] =\n"
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" {\n"
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" { 346.1,114.1 }, { 347.1,111.1 }\n"
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" };\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void void0() { // #6327
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check("void f() { (void*)0; }");
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ASSERT_EQUALS("", errout.str());
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check("#define X 0\n"
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"void f() { X; }");
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ASSERT_EQUALS("", errout.str());
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}
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void intarray() {
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check("int arr[] = { 100/2, 1*100 };");
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ASSERT_EQUALS("", errout.str());
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}
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void structarraynull() {
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check("struct st arr[] = {\n"
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" { 100/2, 1*100 }\n"
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" { 90, 70 }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void structarray() {
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check("struct st arr[] = {\n"
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" { 100/2, 1*100 }\n"
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" { 90, 70 }\n"
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"};");
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ASSERT_EQUALS("", errout.str());
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}
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void conditionalcall() {
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check("void f() {\n"
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" 0==x ? X() : Y();\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void structinit() {
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// #2462 - C++11 struct initialization
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check("void f() {\n"
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" ABC abc{1,2,3};\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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// #6260 - C++11 array initialization
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check("void foo() {\n"
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" static const char* a[][2] {\n"
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" {\"b\", \"\"},\n"
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" };\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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// #2482 - false positive for empty struct
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check("struct A {};");
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ASSERT_EQUALS("", errout.str());
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// #4387 - C++11 initializer list
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check("A::A() : abc{0} {}");
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ASSERT_EQUALS("", errout.str());
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// #5042 - C++11 initializer list
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check("A::A() : abc::def<int>{0} {}");
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ASSERT_EQUALS("", errout.str());
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// #4503 - vector init
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check("void f() { vector<int> v{1}; }");
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ASSERT_EQUALS("", errout.str());
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}
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void returnstruct() {
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check("struct s foo() {\n"
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" return (struct s){0,0};\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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// #4754
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check("unordered_map<string, string> foo() {\n"
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" return {\n"
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" {\"hi\", \"there\"},\n"
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" {\"happy\", \"sad\"}\n"
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" };\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("struct s foo() {\n"
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" return (struct s){0};\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void cast() {
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check("void f() {\n"
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" ((struct foo *)(0x1234))->xy = 1;\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("bool f(const std::exception& e) {\n" // #10918
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" try {\n"
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" dynamic_cast<const InvalidTypeException&>(e);\n"
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" return true;\n"
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" }\n"
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" catch (...) {\n"
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" return false;\n"
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" }\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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}
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void increment() {
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check("void f() {\n"
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" int x = 1;\n"
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" x++, x++;\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void cpp11init() {
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check("void f() {\n"
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" int x{1};\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("std::vector<int> f(int* p) {\n"
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" return std::vector<int>({ p[0] });\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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}
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void cpp11init2() {
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check("x<string> handlers{\n"
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" { \"mode2\", []() { return 2; } },\n"
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"};");
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ASSERT_EQUALS("", errout.str());
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}
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void cpp11init3() {
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check("struct A { void operator()(int); };\n"
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"void f() {\n"
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"A{}(0);\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("template<class> struct A { void operator()(int); };\n"
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"void f() {\n"
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"A<int>{}(0);\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void block() {
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check("void f() {\n"
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" ({ do_something(); 0; });\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("void f() {\n"
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"out:\n"
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" ({ do_something(); 0; });\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void mapindex() {
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check("void f() {\n"
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" map[{\"1\",\"2\"}]=0;\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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// #8827
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void commaoperator1() {
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check("void foo(int,const char*,int);\n"
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"void f(int value) {\n"
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" foo(42,\"test\",42),(value&42);\n"
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"}");
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ASSERT_EQUALS("[test.cpp:3]: (warning) Found suspicious operator ',', result is not used.\n", errout.str());
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}
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void commaoperator2() {
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check("void f() {\n"
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" for(unsigned int a=0, b; a<10; a++ ) {}\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("void g();\n" // #10952
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"bool f() {\n"
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" return (void)g(), false;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("void f(int a, int b, int c, int d) {\n"
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" Eigen::Vector4d V;\n"
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" V << a, b, c, d;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("struct S { Eigen::Vector4d V; };\n"
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"struct T { int a, int b, int c, int d; };\n"
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"void f(S& s, const T& t) {\n"
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" s.V << t.a, t.b, t.c, t.d;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("struct S { Eigen::Vector4d V[2]; };\n"
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"void f(int a, int b, int c, int d) {\n"
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" S s[1];\n"
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" s[0].V[1] << a, b, c, d;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("void f() {\n"
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" a.b[4][3].c()->d << x , y, z;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("struct V {\n"
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" Eigen::Vector3d& operator[](int i) { return v[i]; }\n"
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" void f(int a, int b, int c);\n"
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" Eigen::Vector3d v[1];\n"
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"};\n"
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"void V::f(int a, int b, int c) {\n"
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" (*this)[0] << a, b, c;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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}
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// #8451
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void redundantstmts() {
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check("void f1(int x) {\n"
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" 1;\n"
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" (1);\n"
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" (char)1;\n"
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" ((char)1);\n"
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" !x;\n"
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" (!x);\n"
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" (unsigned int)!x;\n"
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" ~x;\n"
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"}\n", true);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Redundant code: Found a statement that begins with numeric constant.\n"
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"[test.cpp:3]: (warning) Redundant code: Found a statement that begins with numeric constant.\n"
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"[test.cpp:4]: (warning) Redundant code: Found a statement that begins with numeric constant.\n"
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"[test.cpp:5]: (warning) Redundant code: Found a statement that begins with numeric constant.\n"
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"[test.cpp:6]: (warning, inconclusive) Found suspicious operator '!', result is not used.\n"
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"[test.cpp:7]: (warning, inconclusive) Found suspicious operator '!', result is not used.\n"
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"[test.cpp:8]: (warning) Redundant code: Found unused cast of expression '!x'.\n"
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"[test.cpp:9]: (warning, inconclusive) Found suspicious operator '~', result is not used.\n",
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errout.str());
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check("void f1(int x) { x; }", true);
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ASSERT_EQUALS("[test.cpp:1]: (warning) Unused variable value 'x'\n", errout.str());
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check("void f() { if (Type t; g(t)) {} }"); // #9776
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) { static_cast<unsigned>(x); }");
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ASSERT_EQUALS("[test.cpp:1]: (warning) Redundant code: Found unused cast of expression 'x'.\n", errout.str());
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check("void f(int x, int* p) {\n"
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" static_cast<void>(x);\n"
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" (void)x;\n"
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" static_cast<void*>(p);\n"
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" (void*)p;\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("void f() { false; }"); // #10856
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ASSERT_EQUALS("[test.cpp:1]: (warning) Redundant code: Found a statement that begins with bool constant.\n", errout.str());
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check("void f(int i) {\n"
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" (float)(char)i;\n"
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" static_cast<float>((char)i);\n"
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" (char)static_cast<float>(i);\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:2]: (warning) Redundant code: Found unused cast of expression 'i'.\n"
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"[test.cpp:3]: (warning) Redundant code: Found unused cast of expression 'i'.\n"
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"[test.cpp:4]: (warning) Redundant code: Found unused cast of expression 'i'.\n",
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errout.str());
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check("namespace M {\n"
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" namespace N { typedef char T; }\n"
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"}\n"
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"void f(int i) {\n"
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" (M::N::T)i;\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:5]: (warning) Redundant code: Found unused cast of expression 'i'.\n", errout.str());
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check("void f(int (g)(int a, int b)) {\n" // #10873
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" int p = 0, q = 1;\n"
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" (g)(p, q);\n"
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"}\n"
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"void f() {\n"
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" char buf[10];\n"
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" (sprintf)(buf, \"%d\", 42);\n"
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" (printf)(\"abc\");\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("struct S; struct T; struct U;\n"
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"void f() {\n"
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" T t;\n"
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" (S)(U)t;\n"
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" (S)static_cast<U>(t);\n"
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" static_cast<S>((U)t);\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("void f(bool b) { b ? true : false; }\n"); // #10865
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ASSERT_EQUALS("[test.cpp:1]: (warning) Redundant code: Found unused result of ternary operator.\n", errout.str());
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check("struct S { void (*f)() = nullptr; };\n" // #10877
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"void g(S* s) {\n"
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" (s->f == nullptr) ? nullptr : (s->f(), nullptr);\n"
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"}\n");
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ASSERT_EQUALS("", errout.str());
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check("void f(bool b) {\n"
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" g() ? true : false;\n"
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" true ? g() : false;\n"
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" false ? true : g();\n"
|
|
" g(b ? true : false, 1);\n"
|
|
" C c{ b ? true : false, 1 };\n"
|
|
" b = (b ? true : false);\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(int i) {\n"
|
|
" for (i; ;) {}\n"
|
|
" for ((long)i; ;) {}\n"
|
|
" for (1; ;) {}\n"
|
|
" for (true; ;) {}\n"
|
|
" for ('a'; ;) {}\n"
|
|
" for (L'b'; ;) {}\n"
|
|
" for (\"x\"; ;) {}\n"
|
|
" for (L\"y\"; ;) {}\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Unused variable value 'i'\n"
|
|
"[test.cpp:3]: (warning) Redundant code: Found unused cast of expression 'i'.\n"
|
|
"[test.cpp:4]: (warning) Redundant code: Found a statement that begins with numeric constant.\n"
|
|
"[test.cpp:5]: (warning) Redundant code: Found a statement that begins with bool constant.\n"
|
|
"[test.cpp:6]: (warning) Redundant code: Found a statement that begins with character constant.\n"
|
|
"[test.cpp:7]: (warning) Redundant code: Found a statement that begins with character constant.\n"
|
|
"[test.cpp:8]: (warning) Redundant code: Found a statement that begins with string constant.\n"
|
|
"[test.cpp:9]: (warning) Redundant code: Found a statement that begins with string constant.\n",
|
|
errout.str());
|
|
|
|
check("struct S { bool b{}; };\n"
|
|
"struct T {\n"
|
|
" S s[2];\n"
|
|
" void g();\n"
|
|
"};\n"
|
|
"void f(const S& r, const S* p) {\n"
|
|
" r.b;\n"
|
|
" p->b;\n"
|
|
" S s;\n"
|
|
" (s.b);\n"
|
|
" T t, u[2];\n"
|
|
" t.s[1].b;\n"
|
|
" t.g();\n"
|
|
" u[0].g();\n"
|
|
" u[1].s[0].b;\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("[test.cpp:7]: (warning) Redundant code: Found unused member access.\n"
|
|
"[test.cpp:8]: (warning) Redundant code: Found unused member access.\n"
|
|
"[test.cpp:10]: (warning) Redundant code: Found unused member access.\n"
|
|
"[test.cpp:12]: (warning) Redundant code: Found unused member access.\n"
|
|
"[test.cpp:15]: (warning) Redundant code: Found unused member access.\n",
|
|
errout.str());
|
|
|
|
check("struct S { int a[2]{}; };\n"
|
|
"struct T { S s; };\n"
|
|
"void f() {\n"
|
|
" int i[2];\n"
|
|
" i[0] = 0;\n"
|
|
" i[0];\n" // <--
|
|
" S s[1];\n"
|
|
" s[0].a[1];\n" // <--
|
|
" T t;\n"
|
|
" t.s.a[1];\n" // <--
|
|
" int j[2][2][1] = {};\n"
|
|
" j[0][0][0];\n" // <--
|
|
"}\n");
|
|
ASSERT_EQUALS("[test.cpp:6]: (warning) Redundant code: Found unused array access.\n"
|
|
"[test.cpp:8]: (warning) Redundant code: Found unused array access.\n"
|
|
"[test.cpp:10]: (warning) Redundant code: Found unused array access.\n"
|
|
"[test.cpp:12]: (warning) Redundant code: Found unused array access.\n",
|
|
errout.str());
|
|
|
|
check("void g(std::map<std::string, std::string>& map) {\n"
|
|
" int j[2]{};\n"
|
|
" int k[2] = {};\n"
|
|
" int l[]{ 1, 2 };\n"
|
|
" int m[] = { 1, 2 };\n"
|
|
" h(0, j[0], 1);\n"
|
|
" C c{ 0, j[0], 1 };\n"
|
|
" c[0];\n"
|
|
" int j[2][2][2] = {};\n"
|
|
" j[h()][0][0];\n"
|
|
" j[0][h()][0];\n"
|
|
" j[0][0][h()];\n"
|
|
" std::map<std::string, int> M;\n"
|
|
" M[\"abc\"];\n"
|
|
" map[\"abc\"];\n" // #10928
|
|
" std::auto_ptr<Int> app[4];" // #10919
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("struct S { void* p; };\n" // #10875
|
|
"void f(S s) {\n"
|
|
" delete (int*)s.p;\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("struct T {\n" // #10874
|
|
" T* p;\n"
|
|
"};\n"
|
|
"void f(T* t) {\n"
|
|
" for (decltype(t->p) (c) = t->p; ;) {}\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(int i, std::vector<int*> v);\n" // #10880
|
|
"void g() {\n"
|
|
" f(1, { static_cast<int*>(nullptr) });\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("struct S { int i; };\n" // #10882
|
|
"enum E {};\n"
|
|
"void f(const S* s) {\n"
|
|
" E e = (E)!s->i;\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(int* p) {\n" // #10932
|
|
" int& r(*p[0]);\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("struct S { int i; };\n" // #10917
|
|
"bool f(S s) {\n"
|
|
" return [](int i) { return i > 0; }(s.i);\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("extern int (*p);\n" // #10936
|
|
"void f() {\n"
|
|
" for (int i = 0; ;) {}\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("class T {};\n" // #10849
|
|
"void f() {\n"
|
|
" auto g = [](const T* t) -> int {\n"
|
|
" const T* u{}, * v{};\n"
|
|
" return 0;\n"
|
|
" };\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("namespace N {\n" // #10876
|
|
" template <class R, class S, void(*T)(R&, float, S)>\n"
|
|
" inline void f() {}\n"
|
|
" template<class T>\n"
|
|
" void g(T& c) {\n"
|
|
" for (typename T::iterator v = c.begin(); v != c.end(); ++v) {}\n"
|
|
" }\n"
|
|
"}\n");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(std::string a, std::string b) {\n" // #7529
|
|
" const std::string s = \" x \" + a;\n"
|
|
" +\" y = \" + b;\n"
|
|
"}\n", /*inconclusive*/ true);
|
|
ASSERT_EQUALS("[test.cpp:3]: (warning, inconclusive) Found suspicious operator '+', result is not used.\n", errout.str());
|
|
|
|
check("void f() {\n"
|
|
" *new int;\n"
|
|
"}\n", /*inconclusive*/ true);
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning, inconclusive) Found suspicious operator '*', result is not used.\n", errout.str());
|
|
|
|
check("void f() {\n" // #5475
|
|
" std::string(\"a\") + \"a\";\n"
|
|
"}\n"
|
|
"void f(std::string& a) {\n"
|
|
" a.erase(3) + \"suf\";\n"
|
|
"}\n", /*inconclusive*/ true);
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning, inconclusive) Found suspicious operator '+', result is not used.\n"
|
|
"[test.cpp:5]: (warning, inconclusive) Found suspicious operator '+', result is not used.\n",
|
|
errout.str());
|
|
|
|
check("void f(XMLElement& parent) {\n" // #11234
|
|
" auto** elem = &parent.firstChild;\n"
|
|
"}\n", /*inconclusive*/ true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void vardecl() {
|
|
// #8984
|
|
check("void f() { a::b *c = d(); }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { std::vector<b> *c; }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { a::b &c = d(); }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { std::vector<b> &c; }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { a::b &&c = d(); }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { std::vector<b> &&c; }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { char * const * a, * const * b; }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { char * const * a = 0, * volatile restrict * b; }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f() { char * const * a = 0, * volatile const * b; }", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void archive() {
|
|
check("void f(Archive &ar) {\n"
|
|
" ar & x;\n"
|
|
"}", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(int ar) {\n"
|
|
" ar & x;\n"
|
|
"}", true);
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning, inconclusive) Found suspicious operator '&', result is not used.\n", errout.str());
|
|
}
|
|
|
|
void ast() {
|
|
check("struct c { void a() const { for (int x=0; x;); } };", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void oror() {
|
|
check("void foo() {\n"
|
|
" params_given (params, \"overrides\") || (overrides = \"1\");\n"
|
|
"}", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(std::ifstream& file) {\n" // #10930
|
|
" int a{}, b{};\n"
|
|
" (file >> a) || (file >> b);\n"
|
|
" (file >> a) && (file >> b);\n"
|
|
"}\n", true);
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
};
|
|
|
|
REGISTER_TEST(TestIncompleteStatement)
|