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| author | Charles <sircharlesaze@gmail.com> | 2020-02-10 06:00:35 +0100 |
|---|---|---|
| committer | Charles <sircharlesaze@gmail.com> | 2020-02-10 06:00:35 +0100 |
| commit | f178a21e2560d9375227dbf6751a54f12e1033b2 (patch) | |
| tree | d36024d504cb7b96f300e084807c0ba0330c4a7c /src/algo | |
| parent | fe15975761f2dcb52d360a521c5ef912d66d5e1c (diff) | |
| download | libft-f178a21e2560d9375227dbf6751a54f12e1033b2.tar.gz libft-f178a21e2560d9375227dbf6751a54f12e1033b2.tar.bz2 libft-f178a21e2560d9375227dbf6751a54f12e1033b2.zip | |
Added ft_bsearch, ft_lsearch, ft_lfind
Diffstat (limited to 'src/algo')
| -rw-r--r-- | src/algo/ft_bsearch.c | 28 | ||||
| -rw-r--r-- | src/algo/ft_lfind.c | 28 | ||||
| -rw-r--r-- | src/algo/ft_lsearch.c | 23 |
3 files changed, 79 insertions, 0 deletions
diff --git a/src/algo/ft_bsearch.c b/src/algo/ft_bsearch.c new file mode 100644 index 0000000..8066479 --- /dev/null +++ b/src/algo/ft_bsearch.c @@ -0,0 +1,28 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_bsearch.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/02/10 05:29:05 by cacharle #+# #+# */ +/* Updated: 2020/02/10 05:43:18 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_algo.h" + +void *ft_bsearch(const void *base, size_t nel, size_t width, + t_ftsearch_const *consts) +{ + void *found; + + if ((consts->compar)(consts->key, base + (nel / 2) * width) == 0) + return ((void*)base + (nel / 2) * width); + if ((found = ft_bsearch(base, nel / 2, width, consts)) != NULL) + return (found); + if ((found = ft_bsearch(base + (nel / 2) * width, nel - nel / 2, + width, consts)) != NULL) + return (found); + return (NULL); +} diff --git a/src/algo/ft_lfind.c b/src/algo/ft_lfind.c new file mode 100644 index 0000000..8538f50 --- /dev/null +++ b/src/algo/ft_lfind.c @@ -0,0 +1,28 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_lfind.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/02/10 05:49:19 by cacharle #+# #+# */ +/* Updated: 2020/02/10 05:58:19 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_algo.h" + +void *ft_lfind(const void *base, size_t *nelp, size_t width, + t_ftsearch_const *consts) +{ + size_t i; + + i = 0; + while (i < *nelp) + { + if ((consts->compar)(consts->key, base + i * width) == 0) + return ((void*)base + i * width); + i++; + } + return (NULL); +} diff --git a/src/algo/ft_lsearch.c b/src/algo/ft_lsearch.c new file mode 100644 index 0000000..4c77bca --- /dev/null +++ b/src/algo/ft_lsearch.c @@ -0,0 +1,23 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_lsearch.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/02/10 05:53:57 by cacharle #+# #+# */ +/* Updated: 2020/02/10 05:59:33 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_algo.h" + +void *ft_lsearch(const void *base, size_t *nelp, size_t width, + t_ftsearch_const *consts) +{ + void *found; + + if ((found = ft_lfind(base, nelp, width, consts)) != NULL) + return (found); + return (ft_memcpy((void*)base + (*nelp)++ * width, consts->key, width)); +} |