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constexpr exception support is busted, disable it for now #2080

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Merged
ericniebler merged 1 commit into from
May 18, 2026
+13 −10
Merged

constexpr exception support is busted, disable it for now #2080

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23 changes: 13 additions & 10 deletions include/stdexec/__detail/__config.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -711,16 +711,19 @@ namespace STDEXEC
# define STDEXEC_NO_STDCPP_EXCEPTIONS() (__EXCEPTIONS == 0)
#endif

#if defined(__cpp_constexpr_exceptions) && __cpp_constexpr_exceptions >= 202411L
# if !STDEXEC_NO_STDCPP_EXCEPTIONS()
// https://wg21.link/p3068
# define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 0
# else
# define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 1
# endif
#else
# define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 1
#endif
// BUGBUG fix support for constexpr exceptions
#define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 1

// #if defined(__cpp_constexpr_exceptions) && __cpp_constexpr_exceptions >= 202411L
// # if !STDEXEC_NO_STDCPP_EXCEPTIONS()
// // https://wg21.link/p3068
// # define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 0
// # else
// # define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 1
// # endif
// #else
// # define STDEXEC_NO_STDCPP_CONSTEXPR_EXCEPTIONS() 1
// #endif

// We need to treat host and device separately
#if STDEXEC_CUDA_COMPILATION() && defined(__CUDA_ARCH__) && !STDEXEC_NVHPC()
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