| xf.li | bfc6e71 | 2025-02-07 01:54:34 -0800 | [diff] [blame^] | 1 | /* wcschr.c - Wide Character Search for POWER6+. |
| 2 | Copyright (C) 2012-2016 Free Software Foundation, Inc. |
| 3 | This file is part of the GNU C Library. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; see the file COPYING.LIB. If |
| 17 | not, see <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <wchar.h> |
| 20 | |
| 21 | #ifndef WCSCHR |
| 22 | # define WCSCHR __wcschr |
| 23 | # define DEFAULT_WCSCHR |
| 24 | #endif |
| 25 | |
| 26 | /* Find the first occurrence of WC in WCS. */ |
| 27 | wchar_t * |
| 28 | WCSCHR (const wchar_t *wcs, const wchar_t wc) |
| 29 | { |
| 30 | const wchar_t *wcs2 = wcs + 1; |
| 31 | |
| 32 | if (*wcs == wc) |
| 33 | return (wchar_t *) wcs; |
| 34 | if (*wcs == L'\0') |
| 35 | return NULL; |
| 36 | |
| 37 | do |
| 38 | { |
| 39 | wcs += 2; |
| 40 | |
| 41 | if (*wcs2 == wc) |
| 42 | return (wchar_t *) wcs2; |
| 43 | if (*wcs2 == L'\0') |
| 44 | return NULL; |
| 45 | wcs2 += 2; |
| 46 | |
| 47 | if (*wcs == wc) |
| 48 | return (wchar_t *) wcs; |
| 49 | if (*wcs == L'\0') |
| 50 | return NULL; |
| 51 | wcs += 2; |
| 52 | |
| 53 | if (*wcs2 == wc) |
| 54 | return (wchar_t *) wcs2; |
| 55 | if (*wcs2 == L'\0') |
| 56 | return NULL; |
| 57 | wcs2 += 2; |
| 58 | |
| 59 | if (*wcs == wc) |
| 60 | return (wchar_t *) wcs; |
| 61 | if (*wcs == L'\0') |
| 62 | return NULL; |
| 63 | wcs += 2; |
| 64 | |
| 65 | if (*wcs2 == wc) |
| 66 | return (wchar_t *) wcs2; |
| 67 | if (*wcs2 == L'\0') |
| 68 | return NULL; |
| 69 | wcs2 += 2; |
| 70 | |
| 71 | if (*wcs == wc) |
| 72 | return (wchar_t *) wcs; |
| 73 | if (*wcs == L'\0') |
| 74 | return NULL; |
| 75 | wcs += 2; |
| 76 | |
| 77 | if (*wcs2 == wc) |
| 78 | return (wchar_t *) wcs2; |
| 79 | if (*wcs2 == L'\0') |
| 80 | return NULL; |
| 81 | wcs2 += 2; |
| 82 | |
| 83 | if (*wcs == wc) |
| 84 | return (wchar_t *) wcs; |
| 85 | } |
| 86 | while (*wcs != L'\0'); |
| 87 | |
| 88 | return NULL; |
| 89 | } |
| 90 | #ifdef DEFAULT_WCSCHR |
| 91 | libc_hidden_def (__wcschr) |
| 92 | weak_alias (__wcschr, wcschr) |
| 93 | libc_hidden_weak (wcschr) |
| 94 | #else |
| 95 | libc_hidden_def (wcschr) |
| 96 | #endif |