diff options
Diffstat (limited to 'src/u8c/u32.h.d/u32fndchr.c')
-rw-r--r-- | src/u8c/u32.h.d/u32fndchr.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/src/u8c/u32.h.d/u32fndchr.c b/src/u8c/u32.h.d/u32fndchr.c new file mode 100644 index 0000000..228c553 --- /dev/null +++ b/src/u8c/u32.h.d/u32fndchr.c @@ -0,0 +1,44 @@ +/* + Copyright 2021 Gabriel Jensen + + This file is part of u8c. + + u8c is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. + + u8c 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 Affero General Public License for more details. + + You should have received a copy of the GNU Affero General Public License along with u8c. + + If not, see <https://www.gnu.org/licenses/>. +*/ +# include <assert.h> +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> +# include <u8c/SIZE_C.h> +# include <u8c/err.h> +# include <u8c/u32.h> +bool u8c_u32fndchr(size_t * const _pos,char32_t const * const _in,char32_t const _chr) { + assert(_pos != NULL); + assert(_in != NULL); + for(register size_t n = SIZE_C(0x0);n <= SIZE_MAX;n += SIZE_C(0x1)) { + register uint_least32_t const tmp = _in[n]; + if(tmp == U'\x0') { + if(_chr == U'\x0') { + *_pos = n; + return false; + } + *_pos = SIZE_C(-0x1); + return true; + } + if(tmp == _chr) { + *_pos = n; + return false; + } + } + u8c_seterr(U"u8c_u32fndchr: Unterminated input.",u8c_errtyp_badio); + *_pos = SIZE_C(-0x1); + return true; +} |