floatConversionOverflow: Avoid warnings when 255.5 is converted to unsigned char etc.
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@ -354,7 +354,7 @@ void CheckType::checkFloatToIntegerOverflow()
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bits = _settings->long_long_bit;
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bits = _settings->long_long_bit;
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else
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else
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continue;
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continue;
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if (bits < 64 && it->floatValue > (1ULL << (bits - 1)))
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if (bits < 64 && it->floatValue >= (1ULL << bits))
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floatToIntegerOverflowError(tok, *it);
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floatToIntegerOverflowError(tok, *it);
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}
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}
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}
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}
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@ -238,6 +238,16 @@ private:
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" return (short)1E6;\n"
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" return (short)1E6;\n"
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"}\n");
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"}\n");
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ASSERT_EQUALS("[test.cpp:2]: (error) Undefined behaviour: float () conversion overflow.\n", removeFloat(errout.str()));
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ASSERT_EQUALS("[test.cpp:2]: (error) Undefined behaviour: float () conversion overflow.\n", removeFloat(errout.str()));
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check("void f(void) {\n"
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" return (unsigned char)256.0;\n"
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"}\n");
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ASSERT_EQUALS("[test.cpp:2]: (error) Undefined behaviour: float () conversion overflow.\n", removeFloat(errout.str()));
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check("void f(void) {\n"
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" return (unsigned char)255.5;\n"
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"}\n");
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ASSERT_EQUALS("", removeFloat(errout.str()));
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}
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}
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};
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};
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