From d94b024b73aeca06de417e0fd3c502495312a8b2 Mon Sep 17 00:00:00 2001
From: Marvin Borner
Date: Sat, 7 Dec 2019 13:40:28 +0100
Subject: Added userspace libc and began userspace based shell

---
 src/userspace/mlibc/string/strinv.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 src/userspace/mlibc/string/strinv.c

(limited to 'src/userspace/mlibc/string/strinv.c')

diff --git a/src/userspace/mlibc/string/strinv.c b/src/userspace/mlibc/string/strinv.c
new file mode 100644
index 0000000..71f3355
--- /dev/null
+++ b/src/userspace/mlibc/string/strinv.c
@@ -0,0 +1,13 @@
+#include <mlibc/string.h>
+
+void strinv(char *str)
+{
+    size_t s_str = strlen(str);
+
+    int iterations = (int) s_str / 2;
+    for (int i = 0; i < iterations; i++) {
+        char aux = str[i];
+        str[i] = str[(s_str - i) - 1];
+        str[(s_str - i) - 1] = aux;
+    }
+}
\ No newline at end of file
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