diff options
author | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 1999-07-14 00:54:57 +0000 |
commit | abfbdde177c3a7155070dda1b2cdc8292054cc26 (patch) | |
tree | e021306b596381fbf8311d2b7eb294e918ff17c8 /math/math_private.h | |
parent | 86421aa57ecfd70963ae66848bd6a6dd3b8e0fe6 (diff) | |
download | glibc-abfbdde177c3a7155070dda1b2cdc8292054cc26.tar.gz |
Update.
Diffstat (limited to 'math/math_private.h')
-rw-r--r-- | math/math_private.h | 99 |
1 files changed, 3 insertions, 96 deletions
diff --git a/math/math_private.h b/math/math_private.h index 906b1dabba..35e3e4e7ca 100644 --- a/math/math_private.h +++ b/math/math_private.h @@ -17,7 +17,7 @@ #ifndef _MATH_PRIVATE_H_ #define _MATH_PRIVATE_H_ -#include <machine/endian.h> +#include <endian.h> #include <sys/types.h> /* The original fdlibm code used statements like: @@ -147,101 +147,8 @@ do { \ (d) = sf_u.value; \ } while (0) -/* A union which permits us to convert between a long double and - three 32 bit ints. */ - -#if __FLOAT_WORD_ORDER == BIG_ENDIAN - -typedef union -{ - long double value; - struct - { - unsigned int sign_exponent:16; - unsigned int empty:16; - u_int32_t msw; - u_int32_t lsw; - } parts; -} ieee_long_double_shape_type; - -#endif - -#if __FLOAT_WORD_ORDER == LITTLE_ENDIAN - -typedef union -{ - long double value; - struct - { - u_int32_t lsw; - u_int32_t msw; - unsigned int sign_exponent:16; - unsigned int empty:16; - } parts; -} ieee_long_double_shape_type; - -#endif - -/* Get three 32 bit ints from a double. */ - -#define GET_LDOUBLE_WORDS(exp,ix0,ix1,d) \ -do { \ - ieee_long_double_shape_type ew_u; \ - ew_u.value = (d); \ - (exp) = ew_u.parts.sign_exponent; \ - (ix0) = ew_u.parts.msw; \ - (ix1) = ew_u.parts.lsw; \ -} while (0) - -/* Set a double from two 32 bit ints. */ - -#define SET_LDOUBLE_WORDS(d,exp,ix0,ix1) \ -do { \ - ieee_long_double_shape_type iw_u; \ - iw_u.parts.sign_exponent = (exp); \ - iw_u.parts.msw = (ix0); \ - iw_u.parts.lsw = (ix1); \ - (d) = iw_u.value; \ -} while (0) - -/* Get the more significant 32 bits of a long double mantissa. */ - -#define GET_LDOUBLE_MSW(v,d) \ -do { \ - ieee_long_double_shape_type sh_u; \ - sh_u.value = (d); \ - (v) = sh_u.parts.msw; \ -} while (0) - -/* Set the more significant 32 bits of a long double mantissa from an int. */ - -#define SET_LDOUBLE_MSW(d,v) \ -do { \ - ieee_long_double_shape_type sh_u; \ - sh_u.value = (d); \ - sh_u.parts.msw = (v); \ - (d) = sh_u.value; \ -} while (0) - -/* Get int from the exponent of a long double. */ - -#define GET_LDOUBLE_EXP(exp,d) \ -do { \ - ieee_long_double_shape_type ge_u; \ - ge_u.value = (d); \ - (exp) = ge_u.parts.sign_exponent; \ -} while (0) - -/* Set exponent of a long double from an int. */ - -#define SET_LDOUBLE_EXP(d,exp) \ -do { \ - ieee_long_double_shape_type se_u; \ - se_u.value = (d); \ - se_u.parts.sign_exponent = (exp); \ - (d) = se_u.value; \ -} while (0) - +/* Get long double macros from a separate header. */ +#include <math_ldbl.h> /* ieee style elementary functions */ extern double __ieee754_sqrt __P((double)); |