diff options
Diffstat (limited to 'src/u8c/str.h.d/strcmp.c')
-rw-r--r-- | src/u8c/str.h.d/strcmp.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/u8c/str.h.d/strcmp.c b/src/u8c/str.h.d/strcmp.c new file mode 100644 index 0000000..31654d0 --- /dev/null +++ b/src/u8c/str.h.d/strcmp.c @@ -0,0 +1,45 @@ +/* + 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 <stdbool.h> +# include <stddef.h> +# include <stdint.h> +# include <u8c/SIZE_C.h> +# include <u8c/err.h> +# include <u8c/str.h> +struct u8c_strcmp_tuple u8c_strcmp(char32_t const * const restrict _lstr,char32_t const * const restrict _rstr) { + struct u8c_strcmp_tuple ret = { + .stat = false, + }; + for(register size_t n = SIZE_C(0x0);n <= SIZE_MAX;n += SIZE_C(0x1)) { + register char32_t const lchr = _lstr[n]; + register char32_t const rchr = _rstr[n]; + if(lchr != rchr) { + if(lchr < rchr) { + ret.res = UINT8_C(0x0); + return ret; + } + ret.res = UINT8_C(0x2); + return ret; + } + if(lchr == U'\x0') { + ret.res = UINT8_C(0x1); + return ret; + } + } + u8c_seterr(u8c_errtyp_untermin,U"u8c_strcmp: Unterminated input."); + ret.stat = true; + return ret; +} |