1 files changed, 4 insertions, 0 deletions
diff --git a/ft_isdigit.c b/ft_isdigit.c
new file mode 100644
index 0000000..a41e1fd
--- /dev/null
+++ b/ft_isdigit.c
@@ -0,0 +1,4 @@
+int ft_isdigit(int c)
+{
+    return (c >= '0' && c <= '9');
+}