1 files changed, 21 insertions, 0 deletions
diff --git a/ft_strmapi.c b/ft_strmapi.c
new file mode 100644
index 0000000..da75c98
--- /dev/null
+++ b/ft_strmapi.c
@@ -0,0 +1,21 @@
+#include <stdlib.h>
+#include "libft.h"
+
+char    *ft_strmapi(char const *s, char (*f)(unsigned int, char))
+{
+    size_t  i;
+    size_t  len;
+    char    *mapped;
+
+    len = ft_strlen(s);
+    if ((mapped = (char*)malloc(sizeof(char) * (len + 1))) == NULL)
+        return (NULL);
+    i = 0;
+    while (i < len)
+    {
+        mapped[i] = (*f)((unsigned int)i, s[i]);
+        i++;
+    }
+    mapped[i] = '\0';
+    return (mapped);
+}