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Diffstat (limited to 'Build/source/utils/asymptote/fpu.h')
-rw-r--r-- | Build/source/utils/asymptote/fpu.h | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/fpu.h b/Build/source/utils/asymptote/fpu.h new file mode 100644 index 00000000000..7ca8df0c344 --- /dev/null +++ b/Build/source/utils/asymptote/fpu.h @@ -0,0 +1,41 @@ +#ifndef FPU_H +#define FPU_H + +#ifdef __GNU_VISIBLE +#undef __GNU_VISIBLE +#define __GNU_VISIBLE 1 +#endif + +#include "common.h" + +#ifdef HAVE_FEENABLEEXCEPT +#include <fenv.h> + +inline int fpu_exceptions() { + int excepts=0; +#ifdef FE_INVALID + excepts |= FE_INVALID; +#endif +#ifdef FE_DIVBYZERO + excepts |= FE_DIVBYZERO; +#endif +#ifdef FE_OVERFLOW + excepts |= FE_OVERFLOW; +#endif + return excepts; +} + +inline void fpu_trap(bool trap=true) +{ + // Conditionally trap FPU exceptions on NaN, zero divide and overflow. + if(trap) feenableexcept(fpu_exceptions()); + else fedisableexcept(fpu_exceptions()); +} + +#else + +inline void fpu_trap(bool=true) {} + +#endif + +#endif |