diff options
| author |   Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-11-03 12:26:52 -0200 |
|---|---|---|
| committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2017-06-07 17:03:43 -0300 |
| commit | 32bf1d09dadee5b60df869ed3567a2b12c04e3fc (patch) | |
| tree | 35384058bf2d5f1f05b893b418a7f339f704629f /include/gmp.h | |
| parent | float128: Extend the power of ten tables (diff) | |
| download | glibc-32bf1d09dadee5b60df869ed3567a2b12c04e3fc.tar.gz glibc-32bf1d09dadee5b60df869ed3567a2b12c04e3fc.tar.bz2 glibc-32bf1d09dadee5b60df869ed3567a2b12c04e3fc.zip | |
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.
Diffstat (limited to 'include/gmp.h')
| -rw-r--r-- | include/gmp.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/gmp.h b/include/gmp.h index b74167097d..e6f635e8d5 100644 --- a/include/gmp.h +++ b/include/gmp.h @@ -6,6 +6,8 @@ #include <stdlib/gmp.h> +#include <bits/floatn.h> + /* 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, |