diff options
Diffstat (limited to 'sysdeps/generic/math_private.h')
| -rw-r--r-- | sysdeps/generic/math_private.h | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/sysdeps/generic/math_private.h b/sysdeps/generic/math_private.h index be1e4d2314..908e6b7901 100644 --- a/sysdeps/generic/math_private.h +++ b/sysdeps/generic/math_private.h @@ -76,50 +76,59 @@ do { \ /* Get the more significant 32 bit int from a double. */ -#define GET_HIGH_WORD(i,d) \ +#ifndef GET_HIGH_WORD +# define GET_HIGH_WORD(i,d) \ do { \ ieee_double_shape_type gh_u; \ gh_u.value = (d); \ (i) = gh_u.parts.msw; \ } while (0) +#endif /* Get the less significant 32 bit int from a double. */ -#define GET_LOW_WORD(i,d) \ +#ifndef GET_LOW_WORD +# define GET_LOW_WORD(i,d) \ do { \ ieee_double_shape_type gl_u; \ gl_u.value = (d); \ (i) = gl_u.parts.lsw; \ } while (0) +#endif /* Get all in one, efficient on 64-bit machines. */ -#define EXTRACT_WORDS64(i,d) \ +#ifndef EXTRACT_WORDS64 +# define EXTRACT_WORDS64(i,d) \ do { \ ieee_double_shape_type gh_u; \ gh_u.value = (d); \ (i) = gh_u.word; \ } while (0) +#endif /* Set a double from two 32 bit ints. */ - -#define INSERT_WORDS(d,ix0,ix1) \ +#ifndef INSERT_WORDS +# define INSERT_WORDS(d,ix0,ix1) \ do { \ ieee_double_shape_type iw_u; \ iw_u.parts.msw = (ix0); \ iw_u.parts.lsw = (ix1); \ (d) = iw_u.value; \ } while (0) +#endif /* Get all in one, efficient on 64-bit machines. */ -#define INSERT_WORDS64(d,i) \ +#ifndef INSERT_WORDS64 +# define INSERT_WORDS64(d,i) \ do { \ ieee_double_shape_type iw_u; \ iw_u.word = (i); \ (d) = iw_u.value; \ } while (0) +#endif /* Set the more significant 32 bits of a double from an int. */ - +#ifndef SET_HIGH_WORD #define SET_HIGH_WORD(d,v) \ do { \ ieee_double_shape_type sh_u; \ @@ -127,16 +136,18 @@ do { \ sh_u.parts.msw = (v); \ (d) = sh_u.value; \ } while (0) +#endif /* Set the less significant 32 bits of a double from an int. */ - -#define SET_LOW_WORD(d,v) \ +#ifndef SET_LOW_WORD +# define SET_LOW_WORD(d,v) \ do { \ ieee_double_shape_type sl_u; \ sl_u.value = (d); \ sl_u.parts.lsw = (v); \ (d) = sl_u.value; \ } while (0) +#endif /* A union which permits us to convert between a float and a 32 bit int. */ @@ -148,22 +159,24 @@ typedef union } ieee_float_shape_type; /* Get a 32 bit int from a float. */ - -#define GET_FLOAT_WORD(i,d) \ +#ifndef GET_FLOAT_WORD +# define GET_FLOAT_WORD(i,d) \ do { \ ieee_float_shape_type gf_u; \ gf_u.value = (d); \ (i) = gf_u.word; \ } while (0) +#endif /* Set a float from a 32 bit int. */ - -#define SET_FLOAT_WORD(d,i) \ +#ifndef SET_FLOAT_WORD +# define SET_FLOAT_WORD(d,i) \ do { \ ieee_float_shape_type sf_u; \ sf_u.word = (i); \ (d) = sf_u.value; \ } while (0) +#endif /* Get long double macros from a separate header. */ #include <math_ldbl.h> |