From aaca11d8a11e4c04c7a5ed1db0adaf4a4c192853 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Sat, 30 Sep 2000 22:03:51 +0000 Subject: Update. 2000-09-30 H.J. Lu * sysdeps/ieee754/ldbl-96/s_ceill.c (__ceill): Handle overflow. * sysdeps/ieee754/ldbl-96/s_floorl.c (__floorl): Likewise. 2000-09-29 H.J. Lu * math/libm-test.inc (init_max_error): Clear all exceptions before starting test. (acosh_test): Test for existence of function. (asinh_test): Likewise. (atan2_test): Likewise. (cabs_test): Likewise. (cacos_test): Likewise. (cacosh_test): Likewise. (casin_test): Likewise. (casinh_test): Likewise. (catan_test): Likewise. (catanh_test): Likewise. (ccos_test): Likewise. (ccosh_test): Likewise. (cexp_test): Likewise. (clog_test): Likewise. (clog10_test): Likewise. (cosh_test): Likewise. (cpow_test): Likewise. (csin_test): Likewise. (csinh_test): Likewise. (csqrt_test): Likewise. (ctan_test): Likewise. (ctanh_test): Likewise. (fmod_test): Likewise. (hypot_test): Likewise. (remainder_test): Likewise. (remquo_test): Likewise. (sincos_test): Likewise. (sinh_test): Likewise. (tanh_test): Likewise. 2000-09-29 H.J. Lu * sysdeps/ia64/ieee754.h: New file. * sysdeps/ia64/fpu/math_ldbl.h: New file. 2000-09-30 Jakub Jelinek * elf/ldconfig.h (FLAG_X8664_LIB64): Define. * sysdeps/unix/sysv/linux/i386/readelflib.c: New file. 2000-09-30 Ulrich Drepper * manual/charset.texi: Correct notations, reference to C90 amd 1, and some other details. * manual/ctype.texi: Likewise. Patches by Markus Kuhn . --- sysdeps/ia64/fpu/math_ldbl.h | 100 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 sysdeps/ia64/fpu/math_ldbl.h (limited to 'sysdeps/ia64/fpu/math_ldbl.h') diff --git a/sysdeps/ia64/fpu/math_ldbl.h b/sysdeps/ia64/fpu/math_ldbl.h new file mode 100644 index 0000000000..e329b70cf7 --- /dev/null +++ b/sysdeps/ia64/fpu/math_ldbl.h @@ -0,0 +1,100 @@ +#ifndef _MATH_PRIVATE_H_ +#error "Never use directly; include instead." +#endif + +/* 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 empty0:32; + unsigned int sign_exponent:16; + unsigned int empty1:16; + 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 empty1:16; + unsigned int empty0:32; + } 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) -- cgit 1.4.1