763 lines
27 KiB
C++
763 lines
27 KiB
C++
/*
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* Cppcheck - A tool for static C/C++ code analysis
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* Copyright (C) 2007-2013 Daniel Marjamäki and 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 "tokenize.h"
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#include "checkbool.h"
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#include "testsuite.h"
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#include <sstream>
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extern std::ostringstream errout;
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class TestBool : public TestFixture {
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public:
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TestBool() : TestFixture("TestBool") {
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}
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private:
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void run() {
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TEST_CASE(bitwiseOnBoolean); // if (bool & bool)
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TEST_CASE(incrementBoolean);
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TEST_CASE(assignBoolToPointer);
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TEST_CASE(comparisonOfBoolExpressionWithInt1);
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TEST_CASE(comparisonOfBoolExpressionWithInt2);
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TEST_CASE(comparisonOfBoolExpressionWithInt3);
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TEST_CASE(comparisonOfBoolWithInt1);
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TEST_CASE(comparisonOfBoolWithInt2);
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TEST_CASE(comparisonOfBoolWithInt3);
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TEST_CASE(comparisonOfBoolWithInt4);
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TEST_CASE(comparisonOfBoolWithInt5);
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TEST_CASE(comparisonOfBoolWithInt6); // #4224 - integer is casted to bool
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TEST_CASE(checkComparisonOfFuncReturningBool1);
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TEST_CASE(checkComparisonOfFuncReturningBool2);
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TEST_CASE(checkComparisonOfFuncReturningBool3);
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TEST_CASE(checkComparisonOfFuncReturningBool4);
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TEST_CASE(checkComparisonOfFuncReturningBool5);
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TEST_CASE(checkComparisonOfFuncReturningBool6);
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}
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void check(const char code[], bool experimental = false) {
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// Clear the error buffer..
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errout.str("");
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Settings settings;
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settings.addEnabled("style");
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settings.addEnabled("warning");
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settings.inconclusive = true;
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settings.experimental = experimental;
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// Tokenize..
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Tokenizer tokenizer(&settings, this);
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std::istringstream istr(code);
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tokenizer.tokenize(istr, "test.cpp");
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// Check...
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CheckBool checkBool(&tokenizer, &settings, this);
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checkBool.runChecks(&tokenizer, &settings, this);
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tokenizer.simplifyTokenList();
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checkBool.runSimplifiedChecks(&tokenizer, &settings, this);
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}
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void assignBoolToPointer() {
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check("void foo(bool *p) {\n"
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" p = false;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:2]: (error) Boolean value assigned to pointer.\n", errout.str());
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}
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void comparisonOfBoolExpressionWithInt1() {
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check("void f(int x) {\n"
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" if ((x && 0x0f)==6)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((x && 0x0f)==0)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if ((x || 0x0f)==6)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((x || 0x0f)==0)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if ((x & 0x0f)==6)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if ((x | 0x0f)==6)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x)==3)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x)==3 || (8 && x)==9)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x)!=3)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x) > 3)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x) > 0)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x) < 0)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x) < 1)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if ((5 && x) > 1)\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if (0 < (5 && x))\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if (0 > (5 && x))\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if (1 > (5 && x))\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if (1 < (5 && x))\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( x > false )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( false < x )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( x < false )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( false > x )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( x >= false )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( false >= x )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( x <= false )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("void f(bool x ) {\n"
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" if ( false <= x )\n"
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" a++;\n"
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"}\n"
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);
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean value using relational operator (<, >, <= or >=).\n", errout.str());
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check("typedef int (*func)(bool invert);\n"
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"void x(int, func f);\n"
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"void foo(int error) {\n"
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" if (error == ABC) { }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void comparisonOfBoolExpressionWithInt2() {
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check("void f(int x) {\n"
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" if (!x == 10) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if (!x != 10) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if (x != 10) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if (10 == !x) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x) {\n"
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" if (10 != !x) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer other than 0 or 1.\n", errout.str());
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check("void f(int x, int y) {\n"
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" if (y != !x) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean expression with an integer.\n", errout.str());
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check("void f(int x, bool y) {\n"
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" if (y != !x) {\n"
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" printf(\"x not equal to 10\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("void f(int x) {\n"
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" if (10 != x) {\n"
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" printf(\"x not equal to 10\");\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 comparisonOfBoolExpressionWithInt3() {
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check("int f(int x) {\n"
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" return t<0>() && x;\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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}
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void checkComparisonOfFuncReturningBool1() {
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check("void f(){\n"
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" int temp = 4;\n"
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" if(compare1(temp) > compare2(temp)){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}\n"
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"bool compare1(int temp){\n"
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" if(temp==4){\n"
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" return true;\n"
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" }\n"
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" else\n"
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" return false;\n"
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"}\n"
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"bool compare2(int temp){\n"
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" if(temp==4){\n"
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" return false;\n"
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" }\n"
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" else\n"
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" return true;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:3]: (style) Comparison of two functions returning boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
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}
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void checkComparisonOfFuncReturningBool2() {
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check("void f(){\n"
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" int temp = 4;\n"
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" bool a = true;\n"
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" if(compare(temp) > a){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}\n"
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"bool compare(int temp){\n"
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" if(temp==4){\n"
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" return true;\n"
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" }\n"
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" else\n"
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" return false;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:4]: (style) Comparison of a function returning boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
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}
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void checkComparisonOfFuncReturningBool3() {
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check("void f(){\n"
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" int temp = 4;\n"
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" if(compare(temp) > temp){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}\n"
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"bool compare(int temp){\n"
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" if(temp==4){\n"
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" return true;\n"
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" }\n"
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" else\n"
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" return false;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:3]: (style) Comparison of a function returning boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
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}
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void checkComparisonOfFuncReturningBool4() {
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check("void f(){\n"
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" int temp = 4;\n"
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" bool b = compare2(6);\n"
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" if(compare1(temp)> b){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}\n"
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"bool compare1(int temp){\n"
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" if(temp==4){\n"
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" return true;\n"
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" }\n"
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" else\n"
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" return false;\n"
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"}\n"
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"bool compare2(int temp){\n"
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" if(temp == 5){\n"
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" return true;\n"
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" }\n"
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" else\n"
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" return false;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:4]: (style) Comparison of a function returning boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
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}
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void checkComparisonOfFuncReturningBool5() {
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check("void f(){\n"
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" int temp = 4;\n"
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" if(compare1(temp) > !compare2(temp)){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}\n"
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"bool compare1(int temp){\n"
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" if(temp==4){\n"
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" return true;\n"
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" }\n"
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" else\n"
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" return false;\n"
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"}\n"
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"bool compare2(int temp){\n"
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" if(temp==4){\n"
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" return false;\n"
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" }\n"
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" else\n"
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" return true;\n"
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"}");
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ASSERT_EQUALS("[test.cpp:3]: (style) Comparison of two functions returning boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
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}
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void checkComparisonOfFuncReturningBool6() {
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check("int compare1(int temp);\n"
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"namespace Foo {\n"
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" bool compare1(int temp);\n"
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"}\n"
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"void f(){\n"
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" int temp = 4;\n"
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" if(compare1(temp) > compare2(temp)){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("namespace Foo {\n"
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" bool compare1(int temp);\n"
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"}\n"
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"int compare1(int temp);\n"
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"void f(){\n"
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" int temp = 4;\n"
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" if(compare1(temp) > compare2(temp)){\n"
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" printf(\"foo\");\n"
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" }\n"
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"}");
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ASSERT_EQUALS("", errout.str());
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check("int compare1(int temp);\n"
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"namespace Foo {\n"
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" bool compare1(int temp);\n"
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" void f(){\n"
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" int temp = 4;\n"
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" if(compare1(temp) > compare2(temp)){\n"
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" printf(\"foo\");\n"
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" }\n"
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" }\n"
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"}");
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ASSERT_EQUALS("[test.cpp:6]: (style) Comparison of a function returning boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
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check("int compare1(int temp);\n"
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"namespace Foo {\n"
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" bool compare1(int temp);\n"
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" void f(){\n"
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" int temp = 4;\n"
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" if(::compare1(temp) > compare2(temp)){\n"
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" printf(\"foo\");\n"
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" }\n"
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" }\n"
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"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("bool compare1(int temp);\n"
|
|
"void f(){\n"
|
|
" int temp = 4;\n"
|
|
" if(foo.compare1(temp) > compare2(temp)){\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void checkComparisonOfBoolWithBool() {
|
|
const char code[] = "void f(){\n"
|
|
" int temp = 4;\n"
|
|
" bool b = compare2(6);\n"
|
|
" bool a = compare1(4);\n"
|
|
" if(b > a){\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}\n"
|
|
"bool compare1(int temp){\n"
|
|
" if(temp==4){\n"
|
|
" return true;\n"
|
|
" }\n"
|
|
" else\n"
|
|
" return false;\n"
|
|
"}\n"
|
|
"bool compare2(int temp){\n"
|
|
" if(temp == 5){\n"
|
|
" return true;\n"
|
|
" }\n"
|
|
" else\n"
|
|
" return false;\n"
|
|
"}\n";
|
|
check(code, true);
|
|
ASSERT_EQUALS("[test.cpp:5]: (style) Comparison of a variable having boolean value using relational (<, >, <= or >=) operator.\n", errout.str());
|
|
check(code, false);
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void bitwiseOnBoolean() { // 3062
|
|
check("void f(_Bool a, _Bool b) {\n"
|
|
" if(a & b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '&&'?\n", errout.str());
|
|
|
|
check("void f(_Bool a, _Bool b) {\n"
|
|
" if(a | b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '||'?\n", errout.str());
|
|
|
|
check("void f(bool a, bool b) {\n"
|
|
" if(a & !b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '&&'?\n", errout.str());
|
|
|
|
check("void f(bool a, bool b) {\n"
|
|
" if(a | !b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '||'?\n", errout.str());
|
|
|
|
check("bool a, b;\n"
|
|
"void f() {\n"
|
|
" if(a & b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:3]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '&&'?\n", errout.str());
|
|
|
|
check("bool a, b;\n"
|
|
"void f() {\n"
|
|
" if(a & !b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:3]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '&&'?\n", errout.str());
|
|
|
|
check("bool a, b;\n"
|
|
"void f() {\n"
|
|
" if(a | b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:3]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '||'?\n", errout.str());
|
|
|
|
check("bool a, b;\n"
|
|
"void f() {\n"
|
|
" if(a | !b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:3]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '||'?\n", errout.str());
|
|
|
|
check("void f(bool a, int b) {\n"
|
|
" if(a & b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style, inconclusive) Boolean variable 'a' is used in bitwise operation. Did you mean '&&'?\n", errout.str());
|
|
|
|
check("void f(int a, bool b) {\n"
|
|
" if(a & b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style, inconclusive) Boolean variable 'b' is used in bitwise operation. Did you mean '&&'?\n", errout.str());
|
|
|
|
check("void f(int a, int b) {\n"
|
|
" if(a & b) {}\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(bool b) {\n"
|
|
" foo(bar, &b);\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void incrementBoolean() {
|
|
check("bool bValue = true;\n"
|
|
"void f() { bValue++; }");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style) Incrementing a variable of type 'bool' with postfix operator++ is deprecated by the C++ Standard. You should assign it the value 'true' instead.\n", errout.str());
|
|
|
|
check("void f(bool test){\n"
|
|
" test++;\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (style) Incrementing a variable of type 'bool' with postfix operator++ is deprecated by the C++ Standard. You should assign it the value 'true' instead.\n", errout.str());
|
|
|
|
check("void f(int test){\n"
|
|
" test++;\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void comparisonOfBoolWithInt1() {
|
|
check("void f(bool x) {\n"
|
|
" if (x < 10) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
|
|
check("void f(bool x) {\n"
|
|
" if (10 >= x) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
|
|
check("void f(bool x) {\n"
|
|
" if (x != 0) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(bool x) {\n" // #3356
|
|
" if (x == 1) {\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(bool x) {\n"
|
|
" if (x != 10) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer that is neither 1 nor 0.\n", errout.str());
|
|
|
|
check("void f(bool x) {\n"
|
|
" if (x == 10) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer that is neither 1 nor 0.\n", errout.str());
|
|
|
|
check("void f(bool x) {\n"
|
|
" if (x == 0) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("DensePropertyMap<int, true> visited;"); // #4075
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void comparisonOfBoolWithInt2() {
|
|
check("void f(bool x, int y) {\n"
|
|
" if (x == y) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
|
|
check("void f(int x, bool y) {\n"
|
|
" if (x == y) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
|
|
check("void f(bool x, bool y) {\n"
|
|
" if (x == y) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(bool x, fooClass y) {\n"
|
|
" if (x == y) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void comparisonOfBoolWithInt3() {
|
|
check("void f(int y) {\n"
|
|
" if (y > false) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
|
|
check("void f(int y) {\n"
|
|
" if (true == y) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
|
|
check("void f(bool y) {\n"
|
|
" if (y == true) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
|
|
check("void f(bool y) {\n"
|
|
" if (false < 5) {\n"
|
|
" printf(\"foo\");\n"
|
|
" }\n"
|
|
"}");
|
|
ASSERT_EQUALS("[test.cpp:2]: (warning) Comparison of a boolean with an integer.\n", errout.str());
|
|
}
|
|
|
|
void comparisonOfBoolWithInt4() {
|
|
check("void f(int x) {\n"
|
|
" if (!x == 1) { }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void comparisonOfBoolWithInt5() {
|
|
check("void SetVisible(int index, bool visible) {\n"
|
|
" bool (SciTEBase::*ischarforsel)(char ch);\n"
|
|
" if (visible != GetVisible(index)) { }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
|
|
void comparisonOfBoolWithInt6() { // #4224 - integer is casted to bool
|
|
check("void SetVisible(bool b, int i) {\n"
|
|
" if (b == (bool)i) { }\n"
|
|
"}");
|
|
ASSERT_EQUALS("", errout.str());
|
|
}
|
|
};
|
|
|
|
REGISTER_TEST(TestBool)
|