2 files changed, 21 insertions, 0 deletions
diff --git a/rushs/tinyprintf/my_strlowcase/my_strlowcase.c b/rushs/tinyprintf/my_strlowcase/my_strlowcase.c
new file mode 100644
index 0000000..e52ea32
--- /dev/null
+++ b/rushs/tinyprintf/my_strlowcase/my_strlowcase.c
@@ -0,0 +1,13 @@
+#include "my_strlowcase.h"
+
+void my_strlowcase(char *s)
+{
+    size_t i;
+    for (i = 0; s[i]; i++)
+    {
+        if (s[i] >= 'A' && s[i] <= 'Z')
+        {
+            s[i] += ('a' - 'A');
+        }
+    }
+}
diff --git a/rushs/tinyprintf/my_strlowcase/my_strlowcase.h b/rushs/tinyprintf/my_strlowcase/my_strlowcase.h
new file mode 100644
index 0000000..d4996b8
--- /dev/null
+++ b/rushs/tinyprintf/my_strlowcase/my_strlowcase.h
@@ -0,0 +1,8 @@
+#ifndef MY_STRLOWCASE_H
+#define MY_STRLOWCASE_H
+
+#include <stddef.h>
+
+void my_strlowcase(char *str);
+
+#endif /* ! MY_STRLOWCASE_H */