* Add tests for #6870, #10749 * Add test for #6372 * Add tests for #6855, #6857 * Add test for #6323 * Comment
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@ -4127,6 +4127,32 @@ private:
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" int method() override { return 1; }\n"
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" int method() override { return 1; }\n"
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"};\n");
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"};\n");
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ASSERT_EQUALS("", errout.str());
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ASSERT_EQUALS("", errout.str());
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// #6855
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check("struct S { int i; };\n"
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"void f(S& s) {\n"
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" if (!(s.i > 0) && (s.i != 0))\n"
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" s.i = 0;\n"
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" else if (s.i < 0)\n"
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" s.s = 0;\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:3] -> [test.cpp:5]: (style) Condition 's.i<0' is always false\n", errout.str());
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// #6857
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check("int bar(int i) { return i; }\n"
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"void foo() {\n"
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" if (bar(1) == 0 && bar(1) > 0) {}\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:3]: (style) Condition 'bar(1)==0' is always false\n"
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"[test.cpp:3]: (style) Condition 'bar(1)>0' is always true\n",
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errout.str());
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check("struct S { int bar(int i) const; };\n"
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"void foo(const S& s) {\n"
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" if (s.bar(1) == 0 && s.bar(1) > 0) {}\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:3]: (warning) Logical conjunction always evaluates to false: s.bar(1) == 0 && s.bar(1) > 0.\n",
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errout.str());
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}
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}
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void alwaysTrueSymbolic()
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void alwaysTrueSymbolic()
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@ -6384,6 +6384,14 @@ private:
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" ((*&(*&s.t[0].p))) = 0;\n"
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" ((*&(*&s.t[0].p))) = 0;\n"
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"}\n");
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"}\n");
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ASSERT_EQUALS("", errout.str());
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ASSERT_EQUALS("", errout.str());
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valueFlowUninit("struct S { int i; };\n" // #6323
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"void f() {\n"
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" struct S s;\n"
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" int x = -3;\n"
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" int y = x < (1, s.i);\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:5]: (error) Uninitialized variable: s.i\n", errout.str());
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}
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}
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void ctu_(const char* file, int line, const char code[]) {
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void ctu_(const char* file, int line, const char code[]) {
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