diff options
Diffstat (limited to 'src/u8c/is.h.d/isdigit.c')
| -rw-r--r-- | src/u8c/is.h.d/isdigit.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/u8c/is.h.d/isdigit.c b/src/u8c/is.h.d/isdigit.c new file mode 100644 index 0000000..8b799d9 --- /dev/null +++ b/src/u8c/is.h.d/isdigit.c @@ -0,0 +1,43 @@ +/* + 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/is.h> +bool u8c_isdigit(uint_least8_t * const _res,char32_t const _chr) { + assert(_res != NULL); + switch(_chr) { + default: + *_res = UINT8_C(0x0); + break; + case U'0': /* DIGIT ZERO */ + case U'1': /* DIGIT ONE */ + case U'2': /* DIGIT TWO */ + case U'3': /* DIGIT THREE */ + case U'4': /* DIGIT FOUR */ + case U'5': /* DIGIT FIVE */ + case U'6': /* DIGIT SIX */ + case U'7': /* DIGIT SEVEN */ + case U'8': /* DIGIT EIGHT */ + case U'9': /* DIGIT NINE */ + case U'\u218A': /* TURNED DIGIT TWO */ + case U'\u218B': /* TURNED DIGIT THREE */ + *_res = UINT8_C(0x1); + break; + } + return false; +} |