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121 lines
2.9 KiB
C
121 lines
2.9 KiB
C
/* Read decimal floating point numbers.
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This file is part of the GNU C Library.
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Copyright (C) 1995-2020 Free Software Foundation, Inc.
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Contributed by Ulrich Drepper <drepper@gnu.org>, 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <bits/floatn.h>
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#ifdef FLOAT
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# define BUILD_DOUBLE 0
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#else
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# define BUILD_DOUBLE 1
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#endif
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#if BUILD_DOUBLE
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# if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64
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# define strtof64 __hide_strtof64
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# define wcstof64 __hide_wcstof64
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# endif
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# if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X
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# define strtof32x __hide_strtof32x
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# define wcstof32x __hide_wcstof32x
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# endif
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#endif
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#include <stdlib.h>
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#include <wchar.h>
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#include <locale/localeinfo.h>
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#ifndef FLOAT
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# include <math_ldbl_opt.h>
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# define FLOAT double
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# ifdef USE_WIDE_CHAR
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# define STRTOF wcstod
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# define STRTOF_L __wcstod_l
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# else
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# define STRTOF strtod
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# define STRTOF_L __strtod_l
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# endif
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#endif
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#ifdef USE_WIDE_CHAR
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# include <wctype.h>
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# define STRING_TYPE wchar_t
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#else
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# define STRING_TYPE char
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#endif
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#define INTERNAL(x) INTERNAL1(x)
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#define INTERNAL1(x) __##x##_internal
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FLOAT
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INTERNAL (STRTOF) (const STRING_TYPE *nptr, STRING_TYPE **endptr, int group)
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{
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return INTERNAL(STRTOF_L) (nptr, endptr, group, _NL_CURRENT_LOCALE);
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}
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#if defined _LIBC
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libc_hidden_def (INTERNAL (STRTOF))
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#endif
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FLOAT
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#ifdef weak_function
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weak_function
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#endif
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STRTOF (const STRING_TYPE *nptr, STRING_TYPE **endptr)
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{
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return INTERNAL(STRTOF_L) (nptr, endptr, 0, _NL_CURRENT_LOCALE);
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}
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#if defined _LIBC
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libc_hidden_def (STRTOF)
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#endif
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#ifdef LONG_DOUBLE_COMPAT
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# if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
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# ifdef USE_WIDE_CHAR
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compat_symbol (libc, wcstod, wcstold, GLIBC_2_0);
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compat_symbol (libc, __wcstod_internal, __wcstold_internal, GLIBC_2_0);
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# else
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compat_symbol (libc, strtod, strtold, GLIBC_2_0);
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compat_symbol (libc, __strtod_internal, __strtold_internal, GLIBC_2_0);
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# endif
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# endif
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#endif
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#if BUILD_DOUBLE
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# if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64
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# undef strtof64
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# undef wcstof64
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# ifdef USE_WIDE_CHAR
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weak_alias (wcstod, wcstof64)
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# else
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weak_alias (strtod, strtof64)
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# endif
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# endif
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# if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X
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# undef strtof32x
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# undef wcstof32x
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# ifdef USE_WIDE_CHAR
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weak_alias (wcstod, wcstof32x)
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# else
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weak_alias (strtod, strtof32x)
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# endif
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# endif
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#endif
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