diff options
Diffstat (limited to 'lib/erl_interface/src/misc/eidef.h')
| -rw-r--r-- | lib/erl_interface/src/misc/eidef.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/erl_interface/src/misc/eidef.h b/lib/erl_interface/src/misc/eidef.h index bd3d0bf631..e0dc325b48 100644 --- a/lib/erl_interface/src/misc/eidef.h +++ b/lib/erl_interface/src/misc/eidef.h @@ -41,6 +41,27 @@ typedef int socklen_t; #endif +#ifdef USE_ISINF_ISNAN /* simulate finite() */ +# define isfinite(f) (!isinf(f) && !isnan(f)) +# define HAVE_ISFINITE +#elif defined(__GNUC__) && defined(HAVE_FINITE) +/* We use finite in gcc as it emits assembler instead of + the function call that isfinite emits. The assembler is + significantly faster. */ +# ifdef isfinite +# undef isfinite +# endif +# define isfinite finite +# ifndef HAVE_ISFINITE +# define HAVE_ISFINITE +# endif +#elif defined(isfinite) && !defined(HAVE_ISFINITE) +# define HAVE_ISFINITE +#elif !defined(HAVE_ISFINITE) && defined(HAVE_FINITE) +# define isfinite finite +# define HAVE_ISFINITE +#endif + typedef unsigned char uint8; /* FIXME use configure */ typedef unsigned short uint16; typedef unsigned int uint32; |