From 32bf1d09dadee5b60df869ed3567a2b12c04e3fc Mon Sep 17 00:00:00 2001 From: "Gabriel F. T. Gomes" Date: Thu, 3 Nov 2016 12:26:52 -0200 Subject: float128: Add conversion from float128 to mpn Reuse the code for __mpn_extract_long_double to implement __mpn_extract_float128. * include/gmp.h: Include bits/floatn.h (__mpn_extract_float128): Declare when __HAVE_DISTINCT_FLOAT128 is 1. * stdlib/gmp-impl.h: Also check if alloca is not defined before including stack-alloc.h. It could have been defined by other header which not necessarily defines HAVE_ALLOCA. * sysdeps/ieee754/float128/Makefile: New file. * sysdeps/ieee754/float128/float1282mpn.c: New file. * sysdeps/ieee754/float128/float128_private.h: Include gmp.h before redefining __mpn_extract_long_double to __mpn_extract_float128, then redefine __mpn_extract_long_double to __mpn_extract_float128. * sysdeps/ieee754/ldbl-128/ldbl2mpn.c: Replace long double with _Float128 to allow float128_private.h overrides. --- include/gmp.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/gmp.h b/include/gmp.h index b741670..e6f635e 100644 --- a/include/gmp.h +++ b/include/gmp.h @@ -6,6 +6,8 @@ #include +#include + /* Now define the internal interfaces. */ extern mp_size_t __mpn_extract_double (mp_ptr res_ptr, mp_size_t size, int *expt, int *is_neg, @@ -15,6 +17,12 @@ extern mp_size_t __mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size, int *expt, int *is_neg, long double value); +#if __HAVE_DISTINCT_FLOAT128 +extern mp_size_t __mpn_extract_float128 (mp_ptr res_ptr, mp_size_t size, + int *expt, int *is_neg, + _Float128 value); +#endif + extern float __mpn_construct_float (mp_srcptr frac_ptr, int expt, int sign); extern double __mpn_construct_double (mp_srcptr frac_ptr, int expt, -- cgit v1.1