Thank you, that fixed it. On Thu, Oct 17, 2024 at 4:06 PM Jonathan Wakely <jwakely.gcc@xxxxxxxxx> wrote: > > > > On Thu, 17 Oct 2024 at 15:51, David Aldrich via Gcc-help <gcc-help@xxxxxxxxxxx> wrote: >> >> Hi >> >> I have code that compiles correctly with gcc 12 and gcc 14, but not with gcc 13: >> >> SIMD.h: In static member function ‘static std::complex<_Float16> >> SIMD::reduce_add_pch(const __m256h&)’: >> /SIMD.h:893:44: error: no matching function for call to >> ‘std::complex<_Float16>::complex(float&, float&)’ >> 893 | return std::complex<_Float16>(re,im); >> | ^ >> >> We are using C++20. >> >> I know that the behaviour of _Float16 changed in gcc 13 but I don't >> know how to fix this error. >> >> Any suggestions please? > > > There's no implicit conversion from float to the narrowing _Float16, but it shoudl work with explicit casts: > > return std::complex<_Float16>(static_cast<_Float16>(re), static_cast<_Float16>(im)); > >
