diff options
Diffstat (limited to 'test_mini/libft/src/algo/ft_bsearch.c')
| -rw-r--r-- | test_mini/libft/src/algo/ft_bsearch.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test_mini/libft/src/algo/ft_bsearch.c b/test_mini/libft/src/algo/ft_bsearch.c new file mode 100644 index 0000000..5132fa2 --- /dev/null +++ b/test_mini/libft/src/algo/ft_bsearch.c @@ -0,0 +1,32 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_bsearch.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/02/10 05:29:05 by cacharle #+# #+# */ +/* Updated: 2020/02/13 23:14:48 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_algo.h" + +void *ft_bsearch(const void *base, size_t nel, size_t width, + t_ftsearch_const *consts) +{ + int res; + size_t mid; + + if (nel < 1) + return (NULL); + mid = nel / 2; + res = (consts->compar)(consts->key, base + mid * width); + if (res == 0) + return ((void*)base + mid * width); + if (res < 0) + return (ft_bsearch(base, mid, width, consts)); + else + return (ft_bsearch(base + (mid + 1) * width, nel - mid - 1, + width, consts)); +} |