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| 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 /sysdeps/ieee754/float128 | |
| parent | 82c19bdfe39164fda779c79a925c2050b19e421b (diff) | |
| download | glibc-32bf1d09dadee5b60df869ed3567a2b12c04e3fc.zip glibc-32bf1d09dadee5b60df869ed3567a2b12c04e3fc.tar.gz glibc-32bf1d09dadee5b60df869ed3567a2b12c04e3fc.tar.bz2 | |
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 'sysdeps/ieee754/float128')
| -rw-r--r-- | sysdeps/ieee754/float128/Makefile | 3 | ||||
| -rw-r--r-- | sysdeps/ieee754/float128/float1282mpn.c | 20 | ||||
| -rw-r--r-- | sysdeps/ieee754/float128/float128_private.h | 2 |
3 files changed, 25 insertions, 0 deletions
diff --git a/sysdeps/ieee754/float128/Makefile b/sysdeps/ieee754/float128/Makefile new file mode 100644 index 0000000..6a7b0e0 --- /dev/null +++ b/sysdeps/ieee754/float128/Makefile @@ -0,0 +1,3 @@ +ifeq ($(subdir),stdlib) +routines += float1282mpn +endif diff --git a/sysdeps/ieee754/float128/float1282mpn.c b/sysdeps/ieee754/float128/float1282mpn.c new file mode 100644 index 0000000..f012ccf --- /dev/null +++ b/sysdeps/ieee754/float128/float1282mpn.c @@ -0,0 +1,20 @@ +/* Convert a _Float128 type to multiprecision. + Copyright (C) 2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <float128_private.h> +#include "../ldbl-128/ldbl2mpn.c" diff --git a/sysdeps/ieee754/float128/float128_private.h b/sysdeps/ieee754/float128/float128_private.h index 894e6ac..1e00853 100644 --- a/sysdeps/ieee754/float128/float128_private.h +++ b/sysdeps/ieee754/float128/float128_private.h @@ -17,6 +17,7 @@ <http://www.gnu.org/licenses/>. */ /* This must be included before the function renames below. */ +#include <gmp.h> #include <math.h> #undef HUGE_VALL #define HUGE_VALL HUGE_VAL_F128 @@ -291,6 +292,7 @@ #define __kernel_tanl __kernel_tanf128 #define __lgamma_negl __lgamma_negf128 #define __lgamma_productl __lgamma_productf128 +#define __mpn_extract_long_double __mpn_extract_float128 #define __sincosl_table __sincosf128_table #define mul_splitl mul_splitf128 |