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Fix: #issue76161: error C2440 of 'static_cast': cannot convert from 'InType' to 'OutType' #76185

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Merged
swgu98 merged 3 commits into from
Nov 5, 2025
+19 −0
Merged

Fix: #issue76161: error C2440 of 'static_cast': cannot convert from 'InType' to 'OutType' #76185

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66c87cd
fix error C2440 when running ninja on windows
Manfredss Nov 3, 2025
54cbe21
fix pre-commit codestyle issues
Manfredss Nov 4, 2025
83af2e3
Merge branch 'PaddlePaddle:develop' into fixissue76161
Manfredss Nov 5, 2025
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19 changes: 19 additions & 0 deletions paddle/phi/core/framework/data_type_transform.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,26 @@ namespace phi {
template <typename InType, typename OutType>
struct CastDataTypeFunctor {
HOSTDEVICE inline OutType operator()(InType in) const {
#if defined(_MSC_VER)
// Avoid unsupported convert of float/bfloat8/float16 -> complex
if constexpr (
(std::is_same_v<OutType, phi::dtype::complex<float>> ||
std::is_same_v<
OutType,
phi::dtype::complex<
double>>)&&(std::is_same_v<InType,
phi::dtype::float8_e4m3fn> ||
std::is_same_v<InType, phi::dtype::float8_e5m2> ||
std::is_same_v<InType, phi::dtype::bfloat16> ||
std::is_same_v<InType, phi::dtype::float16>)) {
// default value，only to avoid compile error
return OutType(0);
} else {
return static_cast<OutType>(in);
}
#else
return static_cast<OutType>(in);
#endif
}
};

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