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7955b1d7ec
Clang 19 has become more strict about initialization with undefined
behavior, resulting in errors similar to:
./SimpleModule.h:126:40: error: in-class initializer for static data member is not a constant expression
126 | static const int kMinSignedValue = -1 << kScaleBits;
| ~~~^~~~~~~~~~~~~
./SimpleModule.h:176:22: note: in instantiation of template class 'signConverter<kInt8>' requested here
176 | transform<typename signConverter<Format>::signedToUnsigned>(src, dst, count);
| ^
./SimpleModule.h:183:5: note: in instantiation of function template specialization 'ConvertSign::convertSignedToUnsigned<kInt8>' requested here
183 | convertSignedToUnsigned<kInt8>(src, dst, count);
| ^
This is because left-shifting negative values is undefined. Replace -1
with ~0u which results in the expected value.
While here, add a few other patches to remove warnings about undefined
left-shifts, and add support for the "make test" target.
PR: 281477
Approved by: maintainer timeout (2 weeks)
MFH: 2024Q3
11 lines
341 B
C++
11 lines
341 B
C++
--- test/FloatToInt.cpp.orig 2013-02-11 17:23:26 UTC
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+++ test/FloatToInt.cpp
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@@ -115,7 +115,7 @@ TEST_F(FloatToIntTest, Int16)
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EXPECT_EQ(readData[i], expectedData[i]);
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}
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-static const int32_t kMinInt24 = -1<<23;
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+static const int32_t kMinInt24 = ~0u<<23;
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static const int32_t kMaxInt24 = (1<<23) - 1;
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TEST_F(FloatToIntTest, Int24)
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