| 1 | /* Read decimal floating point numbers. |
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| 2 | This file is part of the GNU C Library. |
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| 3 | Copyright (C) 1995-2022 Free Software Foundation, Inc. |
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| 4 | |
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| 5 | The GNU C Library is free software; you can redistribute it and/or |
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| 6 | modify it under the terms of the GNU Lesser General Public |
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| 7 | License as published by the Free Software Foundation; either |
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| 8 | version 2.1 of the License, or (at your option) any later version. |
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| 9 | |
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| 10 | The GNU C Library is distributed in the hope that it will be useful, |
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 13 | Lesser General Public License for more details. |
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| 14 | |
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| 15 | You should have received a copy of the GNU Lesser General Public |
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| 16 | License along with the GNU C Library; if not, see |
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| 17 | <https://www.gnu.org/licenses/>. */ |
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| 18 | |
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| 19 | #include <bits/floatn.h> |
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| 20 | |
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| 21 | #ifdef FLOAT |
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| 22 | # define BUILD_DOUBLE 0 |
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| 23 | #else |
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| 24 | # define BUILD_DOUBLE 1 |
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| 25 | #endif |
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| 26 | |
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| 27 | #if BUILD_DOUBLE |
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| 28 | # if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64 |
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| 29 | # define strtof64 __hide_strtof64 |
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| 30 | # define wcstof64 __hide_wcstof64 |
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| 31 | # endif |
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| 32 | # if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X |
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| 33 | # define strtof32x __hide_strtof32x |
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| 34 | # define wcstof32x __hide_wcstof32x |
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| 35 | # endif |
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| 36 | #endif |
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| 37 | |
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| 38 | #include <stdlib.h> |
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| 39 | #include <wchar.h> |
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| 40 | #include <locale/localeinfo.h> |
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| 41 | |
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| 42 | |
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| 43 | #ifndef FLOAT |
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| 44 | # include <math_ldbl_opt.h> |
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| 45 | # define FLOAT double |
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| 46 | # ifdef USE_WIDE_CHAR |
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| 47 | # define STRTOF wcstod |
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| 48 | # define STRTOF_L __wcstod_l |
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| 49 | # else |
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| 50 | # define STRTOF strtod |
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| 51 | # define STRTOF_L __strtod_l |
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| 52 | # endif |
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| 53 | #endif |
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| 54 | |
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| 55 | #ifdef USE_WIDE_CHAR |
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| 56 | # include <wctype.h> |
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| 57 | # define STRING_TYPE wchar_t |
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| 58 | #else |
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| 59 | # define STRING_TYPE char |
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| 60 | #endif |
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| 61 | |
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| 62 | #define INTERNAL(x) INTERNAL1(x) |
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| 63 | #define INTERNAL1(x) __##x##_internal |
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| 64 | |
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| 65 | |
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| 66 | FLOAT |
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| 67 | INTERNAL (STRTOF) (const STRING_TYPE *nptr, STRING_TYPE **endptr, int group) |
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| 68 | { |
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| 69 | return INTERNAL(STRTOF_L) (nptr, endptr, group, _NL_CURRENT_LOCALE); |
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| 70 | } |
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| 71 | #if defined _LIBC |
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| 72 | libc_hidden_def (INTERNAL (STRTOF)) |
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| 73 | #endif |
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| 74 | |
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| 75 | |
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| 76 | FLOAT |
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| 77 | #ifdef weak_function |
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| 78 | weak_function |
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| 79 | #endif |
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| 80 | STRTOF (const STRING_TYPE *nptr, STRING_TYPE **endptr) |
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| 81 | { |
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| 82 | return INTERNAL(STRTOF_L) (nptr, endptr, 0, _NL_CURRENT_LOCALE); |
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| 83 | } |
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| 84 | #if defined _LIBC |
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| 85 | libc_hidden_def (STRTOF) |
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| 86 | #endif |
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| 87 | |
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| 88 | #ifdef LONG_DOUBLE_COMPAT |
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| 89 | # if LONG_DOUBLE_COMPAT(libc, GLIBC_2_0) |
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| 90 | # ifdef USE_WIDE_CHAR |
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| 91 | compat_symbol (libc, wcstod, wcstold, GLIBC_2_0); |
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| 92 | compat_symbol (libc, __wcstod_internal, __wcstold_internal, GLIBC_2_0); |
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| 93 | # else |
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| 94 | compat_symbol (libc, strtod, strtold, GLIBC_2_0); |
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| 95 | compat_symbol (libc, __strtod_internal, __strtold_internal, GLIBC_2_0); |
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| 96 | # endif |
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| 97 | # endif |
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| 98 | #endif |
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| 99 | |
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| 100 | #if BUILD_DOUBLE |
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| 101 | # if __HAVE_FLOAT64 && !__HAVE_DISTINCT_FLOAT64 |
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| 102 | # undef strtof64 |
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| 103 | # undef wcstof64 |
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| 104 | # ifdef USE_WIDE_CHAR |
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| 105 | weak_alias (wcstod, wcstof64) |
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| 106 | # else |
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| 107 | weak_alias (strtod, strtof64) |
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| 108 | # endif |
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| 109 | # endif |
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| 110 | # if __HAVE_FLOAT32X && !__HAVE_DISTINCT_FLOAT32X |
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| 111 | # undef strtof32x |
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| 112 | # undef wcstof32x |
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| 113 | # ifdef USE_WIDE_CHAR |
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| 114 | weak_alias (wcstod, wcstof32x) |
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| 115 | # else |
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| 116 | weak_alias (strtod, strtof32x) |
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| 117 | # endif |
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| 118 | # endif |
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| 119 | #endif |
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| 120 | |
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