Initial commit: libft Part 1 with tests and documentation

Reimplements 24 libc functions with Doxygen-documented header
and test suite comparing against libc.

1 files changed, 18 insertions, 0 deletions

diff --git a/ft_strrchr.c b/ft_strrchr.c
new file mode 100644
index 0000000..8ec72d1
--- /dev/null
+++ b/ft_strrchr.c
@@ -0,0 +1,18 @@
+#include "libft.h"
+
+char *
+ft_strrchr (const char *s, int c)
+{
+  size_t len;
+
+  len = ft_strlen (s);
+  while (len > 0)
+    {
+      if (s[len] == (char)c)
+        return ((char *)s + len);
+      len--;
+    }
+  if (s[0] == (char)c)
+    return ((char *)s);
+  return (NULL);
+}