mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-26 12:41:05 +00:00
dee2bea048
C2x adds binary integer constants starting with 0b or 0B, and supports those constants for the %i scanf format (in addition to the %b format, which isn't yet implemented for scanf in glibc). Implement that scanf support for glibc. As with the strtol support, this is incompatible with previous C standard versions, in that such an input string starting with 0b or 0B was previously required to be parsed as 0 (with the rest of the input potentially matching subsequent parts of the scanf format string). Thus this patch adds 12 new __isoc23_* functions per long double format (12, 24 or 36 depending on how many long double formats the glibc configuration supports), with appropriate header redirection support (generally very closely following that for the __isoc99_* scanf functions - note that __GLIBC_USE (DEPRECATED_SCANF) takes precedence over __GLIBC_USE (C2X_STRTOL), so the case of GNU extensions to C89 continues to get old-style GNU %a and does not get this new feature). The function names would remain as __isoc23_* even if C2x ends up published in 2024 rather than 2023. When scanf %b support is added, I think it will be appropriate for all versions of scanf to follow C2x rules for inputs to the %b format (given that there are no compatibility concerns for a new format). Tested for x86_64 (full glibc testsuite). The first version was also tested for powerpc (32-bit) and powerpc64le (stdio-common/ and wcsmbs/ tests), and with build-many-glibcs.py.
322 lines
12 KiB
C
322 lines
12 KiB
C
#ifndef _WCHAR_H
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/* Workaround PR90731 with GCC 9 when using ldbl redirects in C++. */
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# include <bits/floatn.h>
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# if defined __cplusplus && __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI == 1
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# if __GNUC_PREREQ (9, 0) && !__GNUC_PREREQ (9, 3)
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# pragma GCC system_header
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# endif
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# endif
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# include <wcsmbs/wchar.h>
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# ifndef _ISOMAC
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#include <bits/floatn.h>
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#include <stdbool.h>
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extern __typeof (wcscasecmp_l) __wcscasecmp_l;
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extern __typeof (wcsncasecmp_l) __wcsncasecmp_l;
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extern __typeof (wcscoll_l) __wcscoll_l;
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extern __typeof (wcsxfrm_l) __wcsxfrm_l;
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extern __typeof (wcstol_l) __wcstol_l;
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extern __typeof (wcstoul_l) __wcstoul_l;
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extern __typeof (wcstoll_l) __wcstoll_l;
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extern __typeof (wcstoull_l) __wcstoull_l;
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extern __typeof (wcstod_l) __wcstod_l;
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extern __typeof (wcstof_l) __wcstof_l;
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extern __typeof (wcstold_l) __wcstold_l;
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extern __typeof (wcsftime_l) __wcsftime_l;
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libc_hidden_proto (__wcstol_l)
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libc_hidden_proto (__wcstoul_l)
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libc_hidden_proto (__wcstoll_l)
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libc_hidden_proto (__wcstoull_l)
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libc_hidden_proto (__wcstod_l)
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libc_hidden_proto (__wcstof_l)
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libc_hidden_proto (__wcstold_l)
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libc_hidden_proto (__wcsftime_l)
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extern __typeof (wcstol) __isoc23_wcstol __attribute_copy__ (wcstol);
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extern __typeof (wcstoul) __isoc23_wcstoul __attribute_copy__ (wcstoul);
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extern __typeof (wcstoll) __isoc23_wcstoll __attribute_copy__ (wcstoll);
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extern __typeof (wcstoull) __isoc23_wcstoull __attribute_copy__ (wcstoull);
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extern __typeof (wcstol_l) __isoc23_wcstol_l __attribute_copy__ (wcstol_l);
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extern __typeof (wcstoul_l) __isoc23_wcstoul_l __attribute_copy__ (wcstoul_l);
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extern __typeof (wcstoll_l) __isoc23_wcstoll_l __attribute_copy__ (wcstoll_l);
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extern __typeof (wcstoull_l) __isoc23_wcstoull_l __attribute_copy__ (wcstoull_l);
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libc_hidden_proto (__isoc23_wcstol)
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libc_hidden_proto (__isoc23_wcstoul)
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libc_hidden_proto (__isoc23_wcstoll)
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libc_hidden_proto (__isoc23_wcstoull)
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libc_hidden_proto (__isoc23_wcstol_l)
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libc_hidden_proto (__isoc23_wcstoul_l)
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libc_hidden_proto (__isoc23_wcstoll_l)
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libc_hidden_proto (__isoc23_wcstoull_l)
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#if __GLIBC_USE (C2X_STRTOL)
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/* Redirect internal uses of these functions to the C2X versions; the
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redirection in the installed header does not work with
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libc_hidden_proto. */
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# undef wcstol
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# define wcstol __isoc23_wcstol
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# undef wcstoul
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# define wcstoul __isoc23_wcstoul
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# undef wcstoll
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# define wcstoll __isoc23_wcstoll
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# undef wcstoull
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# define wcstoull __isoc23_wcstoull
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# undef wcstol_l
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# define wcstol_l __isoc23_wcstol_l
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# undef wcstoul_l
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# define wcstoul_l __isoc23_wcstoul_l
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# undef wcstoll_l
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# define wcstoll_l __isoc23_wcstoll_l
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# undef wcstoull_l
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# define wcstoull_l __isoc23_wcstoull_l
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#endif
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extern double __wcstod_internal (const wchar_t *__restrict __nptr,
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wchar_t **__restrict __endptr, int __group)
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__THROW;
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extern float __wcstof_internal (const wchar_t *__restrict __nptr,
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wchar_t **__restrict __endptr, int __group)
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__THROW;
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extern long double __wcstold_internal (const wchar_t *__restrict __nptr,
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wchar_t **__restrict __endptr,
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int __group) __THROW;
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extern long int __wcstol_internal (const wchar_t *__restrict __nptr,
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wchar_t **__restrict __endptr,
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int __base, int __group) __THROW;
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extern unsigned long int __wcstoul_internal (const wchar_t *__restrict __npt,
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wchar_t **__restrict __endptr,
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int __base, int __group) __THROW;
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__extension__
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extern long long int __wcstoll_internal (const wchar_t *__restrict __nptr,
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wchar_t **__restrict __endptr,
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int __base, int __group) __THROW;
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__extension__
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extern unsigned long long int __wcstoull_internal (const wchar_t *
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__restrict __nptr,
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wchar_t **
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__restrict __endptr,
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int __base,
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int __group) __THROW;
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extern unsigned long long int ____wcstoull_l_internal (const wchar_t *,
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wchar_t **, int, int,
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bool, locale_t);
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libc_hidden_proto (__wcstof_internal)
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libc_hidden_proto (__wcstod_internal)
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libc_hidden_proto (__wcstold_internal)
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libc_hidden_proto (__wcstol_internal)
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libc_hidden_proto (__wcstoll_internal)
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libc_hidden_proto (__wcstoul_internal)
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libc_hidden_proto (__wcstoull_internal)
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libc_hidden_proto (wcstof)
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libc_hidden_proto (wcstod)
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libc_hidden_ldbl_proto (wcstold)
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libc_hidden_proto (wcstol)
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libc_hidden_proto (wcstoll)
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libc_hidden_proto (wcstoul)
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libc_hidden_proto (wcstoull)
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extern float ____wcstof_l_internal (const wchar_t *, wchar_t **, int,
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locale_t) attribute_hidden;
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extern double ____wcstod_l_internal (const wchar_t *, wchar_t **, int,
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locale_t) attribute_hidden;
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extern long double ____wcstold_l_internal (const wchar_t *, wchar_t **,
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int, locale_t) attribute_hidden;
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extern long int ____wcstol_l_internal (const wchar_t *, wchar_t **, int,
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int, bool, locale_t) attribute_hidden;
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extern unsigned long int ____wcstoul_l_internal (const wchar_t *,
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wchar_t **,
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int, int, bool, locale_t)
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attribute_hidden;
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extern long long int ____wcstoll_l_internal (const wchar_t *, wchar_t **,
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int, int, bool, locale_t)
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attribute_hidden;
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extern unsigned long long int ____wcstoull_l_internal (const wchar_t *,
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wchar_t **, int, int,
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bool, locale_t)
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attribute_hidden;
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#if __HAVE_DISTINCT_FLOAT128
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extern __typeof (wcstof128_l) __wcstof128_l;
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libc_hidden_proto (__wcstof128_l)
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extern _Float128 __wcstof128_internal (const wchar_t *__restrict __nptr,
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wchar_t **__restrict __endptr,
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int __group) __THROW;
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extern _Float128 ____wcstof128_l_internal (const wchar_t *, wchar_t **, int,
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locale_t) attribute_hidden;
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libc_hidden_proto (__wcstof128_internal)
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libc_hidden_proto (wcstof128)
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#endif
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libc_hidden_proto (__wcscasecmp_l)
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libc_hidden_proto (__wcsncasecmp_l)
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libc_hidden_proto (__wcscoll_l)
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libc_hidden_proto (__wcsxfrm_l)
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libc_hidden_proto (fputws_unlocked)
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libc_hidden_proto (putwc_unlocked)
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libc_hidden_proto (putwc)
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libc_hidden_proto (mbrtowc)
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libc_hidden_proto (wcrtomb)
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extern int __wcscmp (const wchar_t *__s1, const wchar_t *__s2)
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__THROW __attribute_pure__;
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libc_hidden_proto (__wcscmp)
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libc_hidden_proto (wcsftime)
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libc_hidden_proto (wcsspn)
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libc_hidden_proto (wcschr)
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/* The C++ overloading of wcschr means we have to repeat the type to
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declare __wcschr instead of using typeof, to avoid errors in C++
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tests; in addition, __THROW cannot be used with a function type
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from typeof in C++. The same applies to __wmemchr and, as regards
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__THROW, to __wcscmp and __wcscoll. */
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extern wchar_t *__wcschr (const wchar_t *__wcs, wchar_t __wc)
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__THROW __attribute_pure__;
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libc_hidden_proto (__wcschr)
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extern int __wcscoll (const wchar_t *__s1, const wchar_t *__s2) __THROW;
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libc_hidden_proto (__wcscoll)
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libc_hidden_proto (wcspbrk)
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extern __typeof (wmemset) __wmemset;
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extern wchar_t *__wmemchr (const wchar_t *__s, wchar_t __c, size_t __n)
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__THROW __attribute_pure__;
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libc_hidden_proto (wmemchr)
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libc_hidden_proto (__wmemchr)
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libc_hidden_proto (wmemset)
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libc_hidden_proto (__wmemset)
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extern int __wmemcmp (const wchar_t *__s1, const wchar_t *__s2, size_t __n)
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__THROW __attribute_pure__;
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/* Now define the internal interfaces. */
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extern int __wcscasecmp (const wchar_t *__s1, const wchar_t *__s2)
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__attribute_pure__;
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extern int __wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
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size_t __n)
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__attribute_pure__;
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extern size_t __wcslen (const wchar_t *__s) __attribute_pure__;
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extern size_t __wcsnlen (const wchar_t *__s, size_t __maxlen)
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__attribute_pure__;
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extern wchar_t *__wcscat (wchar_t *dest, const wchar_t *src);
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extern wint_t __btowc (int __c) attribute_hidden;
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extern int __mbsinit (const __mbstate_t *__ps);
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extern size_t __mbrtowc (wchar_t *__restrict __pwc,
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const char *__restrict __s, size_t __n,
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__mbstate_t *__restrict __p);
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libc_hidden_proto (__mbrtowc)
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libc_hidden_proto (__mbrlen)
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extern size_t __wcrtomb (char *__restrict __s, wchar_t __wc,
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__mbstate_t *__restrict __ps) attribute_hidden;
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extern size_t __wcrtomb_internal (char *__restrict __s, wchar_t __wc,
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__mbstate_t *__restrict __ps,
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size_t __s_size)
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attribute_hidden;
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extern size_t __mbsrtowcs (wchar_t *__restrict __dst,
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const char **__restrict __src,
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size_t __len, __mbstate_t *__restrict __ps)
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attribute_hidden;
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extern size_t __wcsrtombs (char *__restrict __dst,
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const wchar_t **__restrict __src,
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size_t __len, __mbstate_t *__restrict __ps)
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attribute_hidden;
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extern size_t __mbsnrtowcs (wchar_t *__restrict __dst,
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const char **__restrict __src, size_t __nmc,
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size_t __len, __mbstate_t *__restrict __ps)
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attribute_hidden;
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extern size_t __wcsnrtombs (char *__restrict __dst,
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const wchar_t **__restrict __src,
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size_t __nwc, size_t __len,
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__mbstate_t *__restrict __ps)
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attribute_hidden;
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extern wchar_t *__wcscpy (wchar_t *__restrict __dest,
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const wchar_t *__restrict __src)
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attribute_hidden __nonnull ((1, 2));
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libc_hidden_proto (__wcscpy)
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extern wchar_t *__wcsncpy (wchar_t *__restrict __dest,
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const wchar_t *__restrict __src, size_t __n);
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extern wchar_t *__wcpcpy (wchar_t *__dest, const wchar_t *__src);
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extern wchar_t *__wcpncpy (wchar_t *__dest, const wchar_t *__src,
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size_t __n);
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extern wchar_t *__wmemcpy (wchar_t *__s1, const wchar_t *s2,
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size_t __n) attribute_hidden;
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extern wchar_t *__wmempcpy (wchar_t *__restrict __s1,
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const wchar_t *__restrict __s2,
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size_t __n) attribute_hidden;
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extern wchar_t *__wmemmove (wchar_t *__s1, const wchar_t *__s2,
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size_t __n) attribute_hidden;
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extern wchar_t *__wcschrnul (const wchar_t *__s, wchar_t __wc)
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__attribute_pure__;
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extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n,
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size_t __ns) __THROW;
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extern int __vfwscanf (__FILE *__restrict __s,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg)
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attribute_hidden
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/* __attribute__ ((__format__ (__wscanf__, 2, 0)) */;
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extern int __fwprintf (__FILE *__restrict __s,
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const wchar_t *__restrict __format, ...)
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attribute_hidden
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/* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
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extern int __vfwprintf_chk (FILE *__restrict __s, int __flag,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg)
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/* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
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extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n,
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int __flag, size_t __s_len,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg)
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/* __attribute__ ((__format__ (__wprintf__, 5, 0))) */;
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extern int __isoc99_fwscanf (__FILE *__restrict __stream,
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const wchar_t *__restrict __format, ...);
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extern int __isoc99_wscanf (const wchar_t *__restrict __format, ...);
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extern int __isoc99_swscanf (const wchar_t *__restrict __s,
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const wchar_t *__restrict __format, ...)
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__THROW;
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extern int __isoc99_vfwscanf (__FILE *__restrict __s,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg);
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extern int __isoc99_vwscanf (const wchar_t *__restrict __format,
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__gnuc_va_list __arg);
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extern int __isoc99_vswscanf (const wchar_t *__restrict __s,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg) __THROW;
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extern int __isoc23_fwscanf (__FILE *__restrict __stream,
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const wchar_t *__restrict __format, ...);
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extern int __isoc23_wscanf (const wchar_t *__restrict __format, ...);
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extern int __isoc23_swscanf (const wchar_t *__restrict __s,
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const wchar_t *__restrict __format, ...)
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__THROW;
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extern int __isoc23_vfwscanf (__FILE *__restrict __s,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg);
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extern int __isoc23_vwscanf (const wchar_t *__restrict __format,
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__gnuc_va_list __arg);
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extern int __isoc23_vswscanf (const wchar_t *__restrict __s,
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const wchar_t *__restrict __format,
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__gnuc_va_list __arg) __THROW;
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libc_hidden_proto (__isoc99_vswscanf)
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libc_hidden_proto (__isoc99_vfwscanf)
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libc_hidden_proto (__isoc23_vswscanf)
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libc_hidden_proto (__isoc23_vfwscanf)
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/* Internal functions. */
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extern size_t __mbsrtowcs_l (wchar_t *dst, const char **src, size_t len,
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mbstate_t *ps, locale_t l) attribute_hidden;
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/* Special version. We know that all uses of mbsinit inside the libc
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have a non-NULL parameter. And certainly we can access the
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internals of the data structure directly. */
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# define mbsinit(state) ((state)->__count == 0)
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# define __mbsinit(state) ((state)->__count == 0)
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# endif
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#endif
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