diff options
Diffstat (limited to 'include/u8c/SIZE_C.h')
| -rw-r--r-- | include/u8c/SIZE_C.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/include/u8c/SIZE_C.h b/include/u8c/SIZE_C.h new file mode 100644 index 0000000..7c9d1a9 --- /dev/null +++ b/include/u8c/SIZE_C.h @@ -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/>. +*/ +/* Size constant */ +# if !defined SIZE_C +# include <limits.h> +# include <stdint.h> +# if SIZE_MAX == USHRT_MAX +# if defined(__cplusplus) +/* C++ : Use variable initialisation. */ +# define SIZE_C(val) (unsigned short{val}) +# else +/* C : Use compound literal. */ +# define SIZE_C(val) ((unsigned short){val}) +# endif +# elif SIZE_MAX == UINT_MAX +# define SIZE_C(val) val +# elif SIZE_MAX == ULONG_MAX +# define SIZE_C(val) val ## ul +# elif SIZE_MAX == ULLONG_MAX +# define SIZE_C(val) val ## ull +# elif SIZE_MAX == UINTMAX_MAX +# define SIZE_C(val) UINTMAX_C(val) +# else +/* Cannot match width; construct new element of type "size_t" */ +# if defined(__cplusplus) +# define SIZE_C(val) (std::size_t{val}) +# else +# define SIZE_C(val) ((size_t){val}) +# endif +# endif +# endif |