Added ft_bsearch, ft_lsearch, ft_lfind

1 files changed, 28 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);
+}