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float128: Add strtof128, wcstof128, and related functions.

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The implementations are contained with sysdeps/ieee754/float128 as
they are only built when _Float128 is enabled within libc/m.

	* include/gmp.h (__mpn_construct_float128): New declaration.
	* include/stdlib.h: Include bits/floatn.h for _Float128 tests.
	(__strtof128_l): New declaration.
	(__strtof128_nan): Likewise.
	(__wcstof128_nan): Likewise.
	(__strtof128_internal): Likewise.
	(____strtof128_l_internal): Likewise.
	* include/wchar.h: Include bits/floatn.h for _Float128 tests.
	(__wcstof128_l): New declaration.
	(__wcstof128_internal): Likewise.

	* stdlib/Makefile (bug-strtod2): Link libm too.

	* stdlib/stdlib.h (strtof128): New declaration.
	(strtof128_l): Likewise.

	* stdlib/tst-strtod-nan-locale-main.c: Updated to use
	tst-strtod.h macros to ensure float128 gets tested too.

	* stdlib/tst-strtod-round-skeleton.c (CHOOSE_f128): New macro.

	* stdlib/tst-strtod.h: Include bits/floatn.h for _Float128
	tests.
	(IF_FLOAT128): New macro.
	(GEN_TEST_STRTOD): Update to optionally include _Float128 in
	the tests.
	(STRTOD_TEST_FOREACH): Likewise.

	* sysdeps/ieee754/float128/Makefile: Insert new strtof128 and
	wcstof128 functions into libc.

	* sysdeps/ieee754/float128/Versions: Add exports for the above
	new functions.

	* sysdeps/ieee754/float128/mpn2float128.c: New file.
	* sysdeps/ieee754/float128/strtod_nan_float128.h: New file.
	* sysdeps/ieee754/float128/strtof128.c: New file.
	* sysdeps/ieee754/float128/strtof128_l.c: New file.
	* sysdeps/ieee754/float128/strtof128_nan.c: New file.
	* sysdeps/ieee754/float128/wcstof128.c: New file.
	* sysdeps/ieee754/float128/wcstof128_l.c: New file.
	* sysdeps/ieee754/float128/wcstof128_nan.c: New fike.
	* wcsmbs/Makefile: (CFLAGS-wcstof128.c): Append strtox-CFLAGS.
	(CFLAGS-wcstof128_l): Likewise.

	* wcsmbs/wchar.h: Include bits/floatn.h for _Float128 tests.
	(wcstof128): New declaration.
	(wcstof128_l): Likewise.
This commit is contained in:
Paul E. Murphy 2016-07-25 13:10:00 -05:00 committed by Gabriel F. T. Gomes
parent 9527ae8291
commit 45f39d4588
21 changed files with 466 additions and 29 deletions
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53
ChangeLog
View file

@ -1,3 +1,56 @@
2017-06-12 Paul E. Murphy <murphyp@linux.vnet.ibm.com>
Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
* include/gmp.h (__mpn_construct_float128): New declaration.
* include/stdlib.h: Include bits/floatn.h for _Float128 tests.
(__strtof128_l): New declaration.
(__strtof128_nan): Likewise.
(__wcstof128_nan): Likewise.
(__strtof128_internal): Likewise.
(____strtof128_l_internal): Likewise.
* include/wchar.h: Include bits/floatn.h for _Float128 tests.
(__wcstof128_l): New declaration.
(__wcstof128_internal): Likewise.
* stdlib/Makefile (bug-strtod2): Link libm too.
* stdlib/stdlib.h (strtof128): New declaration.
(strtof128_l): Likewise.
* stdlib/tst-strtod-nan-locale-main.c: Updated to use
tst-strtod.h macros to ensure float128 gets tested too.
* stdlib/tst-strtod-round-skeleton.c (CHOOSE_f128): New macro.
* stdlib/tst-strtod.h: Include bits/floatn.h for _Float128
tests.
(IF_FLOAT128): New macro.
(GEN_TEST_STRTOD): Update to optionally include _Float128 in
the tests.
(STRTOD_TEST_FOREACH): Likewise.
* sysdeps/ieee754/float128/Makefile: Insert new strtof128 and
wcstof128 functions into libc.
* sysdeps/ieee754/float128/Versions: Add exports for the above
new functions.
* sysdeps/ieee754/float128/mpn2float128.c: New file.
* sysdeps/ieee754/float128/strtod_nan_float128.h: New file.
* sysdeps/ieee754/float128/strtof128.c: New file.
* sysdeps/ieee754/float128/strtof128_l.c: New file.
* sysdeps/ieee754/float128/strtof128_nan.c: New file.
* sysdeps/ieee754/float128/wcstof128.c: New file.
* sysdeps/ieee754/float128/wcstof128_l.c: New file.
* sysdeps/ieee754/float128/wcstof128_nan.c: New fike.
* wcsmbs/Makefile: (CFLAGS-wcstof128.c): Append strtox-CFLAGS.
(CFLAGS-wcstof128_l): Likewise.
* wcsmbs/wchar.h: Include bits/floatn.h for _Float128 tests.
(wcstof128): New declaration.
(wcstof128_l): Likewise.
2017-06-12 Joseph Myers <joseph@codesourcery.com>
[BZ #21552]

4
include/gmp.h
View file

@ -31,5 +31,9 @@ extern double __mpn_construct_double (mp_srcptr frac_ptr, int expt,
extern long double __mpn_construct_long_double (mp_srcptr frac_ptr, int expt,
int sign);
#if __HAVE_DISTINCT_FLOAT128
extern _Float128 __mpn_construct_float128 (mp_srcptr frac_ptr, int expt,
int sign);
#endif
#endif

29
include/stdlib.h
View file

@ -219,6 +219,35 @@ libc_hidden_proto (__wcstof_nan)
libc_hidden_proto (__wcstod_nan)
libc_hidden_proto (__wcstold_nan)
/* Enable _FloatN bits as needed. */
#include <bits/floatn.h>
#if __HAVE_DISTINCT_FLOAT128
extern __typeof (strtof128_l) __strtof128_l;
libc_hidden_proto (__strtof128_l)
libc_hidden_proto (strtof128)
extern _Float128 __strtof128_nan (const char *, char **, char)
internal_function;
extern _Float128 __wcstof128_nan (const wchar_t *, wchar_t **, wchar_t)
internal_function;
libc_hidden_proto (__strtof128_nan)
libc_hidden_proto (__wcstof128_nan)
extern _Float128 __strtof128_internal (const char *__restrict __nptr,
char **__restrict __endptr,
int __group);
libc_hidden_proto (__strtof128_internal)
extern _Float128 ____strtof128_l_internal (const char *__restrict __nptr,
char **__restrict __endptr,
int __group, __locale_t __loc);
libc_hidden_proto (____strtof128_l_internal)
#endif
extern char *__ecvt (double __value, int __ndigit, int *__restrict __decpt,
int *__restrict __sign);
extern char *__fcvt (double __value, int __ndigit, int *__restrict __decpt,

13
include/wchar.h
View file

@ -2,6 +2,8 @@
# include <wcsmbs/wchar.h>
# ifndef _ISOMAC
#include <bits/floatn.h>
extern __typeof (wcscasecmp_l) __wcscasecmp_l;
extern __typeof (wcsncasecmp_l) __wcsncasecmp_l;
extern __typeof (wcscoll_l) __wcscoll_l;
@ -68,6 +70,17 @@ libc_hidden_proto (wcstoll)
libc_hidden_proto (wcstoul)
libc_hidden_proto (wcstoull)
#if __HAVE_DISTINCT_FLOAT128
extern __typeof (wcstof128_l) __wcstof128_l;
libc_hidden_proto (__wcstof128_l)
extern _Float128 __wcstof128_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __group) __THROW;
libc_hidden_proto (__wcstof128_internal)
libc_hidden_proto (wcstof128)
#endif
libc_hidden_proto (__wcscasecmp_l)
libc_hidden_proto (__wcsncasecmp_l)

1
stdlib/Makefile
View file

@ -198,6 +198,7 @@ $(objpfx)tst-putenvmod.so: $(objpfx)tst-putenvmod.os $(link-libc-deps)
libof-tst-putenvmod = extramodules
$(objpfx)bug-getcontext: $(libm)
$(objpfx)bug-strtod2: $(libm)
$(objpfx)tst-strtod-round: $(libm)
$(objpfx)tst-tininess: $(libm)
$(objpfx)tst-strtod-underflow: $(libm)

14
stdlib/stdlib.h
View file

@ -128,6 +128,13 @@ extern long double strtold (const char *__restrict __nptr,
__THROW __nonnull ((1));
#endif
#if __HAVE_FLOAT128 && __GLIBC_USE (IEC_60559_TYPES_EXT)
/* Likewise for the '_Float128' format */
extern _Float128 strtof128 (const char *__restrict __nptr,
char **__restrict __endptr)
__THROW __nonnull ((1));
#endif
/* Convert a string to a long integer. */
extern long int strtol (const char *__restrict __nptr,
char **__restrict __endptr, int __base)
@ -236,6 +243,13 @@ extern long double strtold_l (const char *__restrict __nptr,
char **__restrict __endptr,
__locale_t __loc)
__THROW __nonnull ((1, 3));
# if __HAVE_FLOAT128
extern _Float128 strtof128_l (const char *__restrict __nptr,
char **__restrict __endptr,
__locale_t __loc)
__THROW __nonnull ((1, 3));
# endif
#endif /* GNU */

36
stdlib/tst-strtod-nan-locale-main.c
View file

@ -23,6 +23,8 @@
#include <stdlib.h>
#include <wchar.h>
#include <stdlib/tst-strtod.h>
#define STR_(X) #X
#define STR(X) STR_(X)
#define FNPFXS STR (FNPFX)
@ -30,20 +32,22 @@
#define CONCAT(X, Y) CONCAT_ (X, Y)
#define FNX(FN) CONCAT (FNPFX, FN)
#define TEST(LOC, STR, FN, TYPE) \
do \
#define TEST_STRTOD(FSUF, FTYPE, FTOSTR, LSUF, CSUF) \
static int \
test_strto ## FSUF (const char * loc, CHAR * s) \
{ \
CHAR *ep; \
FTYPE val = FNX (FSUF) (s, &ep); \
if (isnan (val) && *ep == 0) \
printf ("PASS: %s: " FNPFXS #FSUF " (" SFMT ")\n", loc, s); \
else \
{ \
CHAR *ep; \
TYPE val = FNX (FN) (STR, &ep); \
if (isnan (val) && *ep == 0) \
printf ("PASS: %s: " FNPFXS #FN " (" SFMT ")\n", LOC, STR); \
else \
{ \
printf ("FAIL: %s: " FNPFXS #FN " (" SFMT ")\n", LOC, STR); \
result = 1; \
} \
printf ("FAIL: %s: " FNPFXS #FSUF " (" SFMT ")\n", loc, s); \
return 1; \
} \
while (0)
return 0; \
}
GEN_TEST_STRTOD_FOREACH (TEST_STRTOD)
static int
test_one_locale (const char *loc)
@ -64,13 +68,9 @@ test_one_locale (const char *loc)
s[4] = L_('A') + i - 10;
s[5] = L_(')');
s[6] = 0;
TEST (loc, s, f, float);
TEST (loc, s, d, double);
TEST (loc, s, ld, long double);
result |= STRTOD_TEST_FOREACH (test_strto, loc, s);
s[4] = L_('a') + i - 10;
TEST (loc, s, f, float);
TEST (loc, s, d, double);
TEST (loc, s, ld, long double);
result |= STRTOD_TEST_FOREACH (test_strto, loc, s);
}
return result;
}

1
stdlib/tst-strtod-round-skeleton.c
View file

@ -93,6 +93,7 @@
/* Add type specific choosing macros below. */
#define CHOOSE_f(f,...) f
#define CHOOSE_d(f,d,...) d
#define CHOOSE_f128(f,d,ld64i,ld64m,ld106,ld113,...) ld113
/* long double is special, and handled above. */
/* Selector for expected result field of a given type. */

36
stdlib/tst-strtod.h
View file

@ -21,11 +21,24 @@
#define FSTRLENMAX 128
#include <bits/floatn.h>
#define F128 __f128 ()
/* Test strfromf128 and strtof128 on all platforms that provide them,
whether or not the type _Float128 is ABI-distinct from long double. */
#if __HAVE_FLOAT128
# define IF_FLOAT128(x) x
#else
# define IF_FLOAT128(x)
#endif
/* Splat n variants of the same test for the various strtod functions. */
#define GEN_TEST_STRTOD_FOREACH(mfunc, ...) \
mfunc ( f, float, strfromf, f, f, ##__VA_ARGS__) \
mfunc ( d, double, strfromd, , , ##__VA_ARGS__) \
mfunc ( ld, long double, strfroml, L, l, ##__VA_ARGS__)
#define GEN_TEST_STRTOD_FOREACH(mfunc, ...) \
mfunc ( f, float, strfromf, f, f, ##__VA_ARGS__) \
mfunc ( d, double, strfromd, , , ##__VA_ARGS__) \
mfunc ( ld, long double, strfroml, L, l, ##__VA_ARGS__) \
IF_FLOAT128 (mfunc (f128, _Float128, strfromf128, F128, f128, ##__VA_ARGS__))
/* The arguments to the generated macros are:
FSUF - Function suffix
FTYPE - float type
@ -36,13 +49,14 @@
#define STRTOD_TEST_FOREACH(mfunc, ...) \
({ \
int result = 0; \
result |= mfunc ## f (__VA_ARGS__); \
result |= mfunc ## d (__VA_ARGS__); \
result |= mfunc ## ld (__VA_ARGS__); \
result; \
#define STRTOD_TEST_FOREACH(mfunc, ...) \
({ \
int result = 0; \
result |= mfunc ## f (__VA_ARGS__); \
result |= mfunc ## d (__VA_ARGS__); \
result |= mfunc ## ld (__VA_ARGS__); \
IF_FLOAT128 (result |= mfunc ## f128 (__VA_ARGS__)); \
result; \
})

5
sysdeps/ieee754/float128/Makefile
View file

@ -1,3 +1,8 @@
ifeq ($(subdir),stdlib)
routines += float1282mpn strfromf128
routines += strtof128 strtof128_l strtof128_nan mpn2float128
endif
ifeq ($(subdir),wcsmbs)
routines += wcstof128_l wcstof128 wcstof128_nan
endif

10
sysdeps/ieee754/float128/Versions
View file

@ -4,7 +4,17 @@
%endif
libc {
FLOAT128_VERSION {
__strtof128_internal;
__wcstof128_internal;
strfromf128;
strtof128;
strtof128_l;
wcstof128;
wcstof128_l;
}
GLIBC_PRIVATE {
# For __nanf128.
__strtof128_nan;
}
}
libm {

54
sysdeps/ieee754/float128/mpn2float128.c Normal file
View file

@ -0,0 +1,54 @@
/* Convert a number in multi-precision format to _Float128.
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 "gmp.h"
#include "gmp-impl.h"
#include <float.h>
#include <math.h>
#include "ieee754_float128.h"
/* Convert a multi-precision integer of the needed number of bits (113 for
binary128) and an integral power of two to a `_Float128' in IEEE854
quad-precision format. */
_Float128
__mpn_construct_float128 (mp_srcptr frac_ptr, int expt, int sign)
{
union ieee854_float128 u;
u.ieee.negative = sign;
u.ieee.exponent = expt + IEEE854_FLOAT128_BIAS;
#if BITS_PER_MP_LIMB == 32
u.ieee.mantissa3 = frac_ptr[0];
u.ieee.mantissa2 = frac_ptr[1];
u.ieee.mantissa1 = frac_ptr[2];
u.ieee.mantissa0 = frac_ptr[3] & (((mp_limb_t) 1
<< (FLT128_MANT_DIG - 96)) - 1);
#elif BITS_PER_MP_LIMB == 64
u.ieee.mantissa3 = frac_ptr[0] & (((mp_limb_t) 1 << 32) - 1);
u.ieee.mantissa2 = frac_ptr[0] >> 32;
u.ieee.mantissa1 = frac_ptr[1] & (((mp_limb_t) 1 << 32) - 1);
u.ieee.mantissa0 = (frac_ptr[1] >> 32) & (((mp_limb_t) 1
<< (FLT128_MANT_DIG - 96)) - 1);
#else
#error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
#endif
return u.d;
}

33
sysdeps/ieee754/float128/strtod_nan_float128.h Normal file
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@ -0,0 +1,33 @@
/* Convert string for NaN payload to corresponding NaN. For _Float128.
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/>. */
#define FLOAT _Float128
#define SET_MANTISSA(flt, mant) \
do \
{ \
union ieee854_float128 u; \
u.d = (flt); \
u.ieee_nan.mantissa0 = 0; \
u.ieee_nan.mantissa1 = 0; \
u.ieee_nan.mantissa2 = (mant) >> 32; \
u.ieee_nan.mantissa3 = (mant); \
if ((u.ieee.mantissa0 | u.ieee.mantissa1 \
| u.ieee.mantissa2 | u.ieee.mantissa3) != 0) \
(flt) = u.d; \
} \
while (0)

34
sysdeps/ieee754/float128/strtof128.c Normal file
View file

@ -0,0 +1,34 @@
/* strtof128 wrapper of strtof128_l.
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/>. */
/* The actual implementation for all floating point sizes is in strtod.c.
These macros tell it to produce the `_Float128' version, `strtof128'. */
#define FLOAT _Float128
#define FLT FLT128
#ifdef USE_WIDE_CHAR
# define STRTOF wcstof128
# define STRTOF_L __wcstof128_l
#else
# define STRTOF strtof128
# define STRTOF_L __strtof128_l
#endif
#include <float128_private.h>
#include <stdlib/strtod.c>

43
sysdeps/ieee754/float128/strtof128_l.c Normal file
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@ -0,0 +1,43 @@
/* Convert string representing a number to a _Float128 value, with locale.
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 <xlocale.h>
/* Bring in potential typedef for _Float128 early for declaration below. */
#include <bits/floatn.h>
extern _Float128 ____strtof128_l_internal (const char *, char **,
int, __locale_t);
#define FLOAT _Float128
#define FLT FLT128
#ifdef USE_WIDE_CHAR
# define STRTOF wcstof128_l
# define __STRTOF __wcstof128_l
# define STRTOF_NAN __wcstof128_nan
#else
# define STRTOF strtof128_l
# define __STRTOF __strtof128_l
# define STRTOF_NAN __strtof128_nan
#endif
#define MPN2FLOAT __mpn_construct_float128
#define FLOAT_HUGE_VAL __builtin_huge_valf128 ()
#include <float128_private.h>
#include <stdlib/strtod_l.c>

28
sysdeps/ieee754/float128/strtof128_nan.c Normal file
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@ -0,0 +1,28 @@
/* Convert string for NaN payload to corresponding NaN. Narrow
strings, __float128.
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 <math.h>
#include <float128_private.h>
#include <strtod_nan_narrow.h>
#include <strtod_nan_float128.h>
#define STRTOD_NAN __strtof128_nan
#include <stdlib/strtod_nan_main.c>

30
sysdeps/ieee754/float128/wcstof128.c Normal file
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@ -0,0 +1,30 @@
/* wcstof128 wrapper of wcstof128_l.
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 <stddef.h>
#include <xlocale.h>
#define USE_WIDE_CHAR 1
/* Bring in _Float128 typedef if needed. */
#include <bits/floatn.h>
extern _Float128 ____wcstof128_l_internal (const wchar_t *, wchar_t **, int,
__locale_t);
#include "strtof128.c"

30
sysdeps/ieee754/float128/wcstof128_l.c Normal file
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@ -0,0 +1,30 @@
/* Convert string representing a number to integer value, using given locale.
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 <stddef.h>
#include <xlocale.h>
#define USE_WIDE_CHAR 1
#include <bits/floatn.h>
extern _Float128 ____wcstof128_l_internal (const wchar_t *, wchar_t **, int,
__locale_t);
#include "strtof128_l.c"

24
sysdeps/ieee754/float128/wcstof128_nan.c Normal file
View file

@ -0,0 +1,24 @@
/* Convert string for NaN payload to corresponding NaN. Wide strings,
_Float128.
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 <stdlib/strtod_nan_wide.h>
#include <float128_private.h>
#include <strtod_nan_float128.h>
#define STRTOD_NAN __wcstof128_nan
#include <stdlib/strtod_nan_main.c>

2
wcsmbs/Makefile
View file

@ -82,6 +82,7 @@ CFLAGS-wcstoll.c = $(strtox-CFLAGS)
CFLAGS-wcstoull.c = $(strtox-CFLAGS)
CFLAGS-wcstod.c = $(strtox-CFLAGS)
CFLAGS-wcstold.c = $(strtox-CFLAGS)
CFLAGS-wcstof128.c = $(strtox-CFLAGS)
CFLAGS-wcstof.c = $(strtox-CFLAGS)
CFLAGS-wcstol_l.c = $(strtox-CFLAGS)
CFLAGS-wcstoul_l.c = $(strtox-CFLAGS)
@ -89,6 +90,7 @@ CFLAGS-wcstoll_l.c = $(strtox-CFLAGS)
CFLAGS-wcstoull_l.c = $(strtox-CFLAGS)
CFLAGS-wcstod_l.c = $(strtox-CFLAGS)
CFLAGS-wcstold_l.c = $(strtox-CFLAGS)
CFLAGS-wcstof128_l.c = $(strtox-CFLAGS)
CFLAGS-wcstof_l.c = $(strtox-CFLAGS)
CPPFLAGS-tst-wchar-h.c = -D_FORTIFY_SOURCE=2

15
wcsmbs/wchar.h
View file

@ -26,6 +26,9 @@
#define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION
#include <bits/libc-header-start.h>
/* Gather machine dependent type support. */
#include <bits/floatn.h>
#define __need_size_t
#define __need_wchar_t
#define __need_NULL
@ -381,6 +384,12 @@ extern long double wcstold (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __THROW;
#endif /* C99 */
/* Likewise for `_Float128' when support is enabled. */
#if __HAVE_FLOAT128 && defined __USE_GNU
extern _Float128 wcstof128 (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr) __THROW;
#endif
/* Convert initial portion of wide string NPTR to `long int'
representation. */
@ -473,6 +482,12 @@ extern float wcstof_l (const wchar_t *__restrict __nptr,
extern long double wcstold_l (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
__locale_t __loc) __THROW;
# if __HAVE_FLOAT128
extern _Float128 wcstof128_l (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
__locale_t __loc) __THROW;
# endif
#endif /* use GNU */