From 348f5d76e5fefa98a80b91ae3ef9bdd90a6e4f1e Mon Sep 17 00:00:00 2001
From: Nick Chambers <uplime@spookyinternet.com>
Date: Mon, 17 Jan 2022 07:51:48 -0600
Subject: [PATCH] c/palindrome.c: check if a word is a valid palindrome

---
 c/palindrome.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 c/palindrome.c

diff --git a/c/palindrome.c b/c/palindrome.c
new file mode 100644
index 0000000..36b55f7
--- /dev/null
+++ b/c/palindrome.c
@@ -0,0 +1,21 @@
+int palindrome(const char *str, unsigned len) {
+  unsigned idx = 0;
+
+  for(; idx < (len - (len % 2)) / 2; idx += 1) {
+    if(str[idx] != str[len - idx - 1]) {
+      return 0;
+    }
+  }
+
+  return 1;
+}
+
+#include <string.h>
+
+int main(int argc, char **argv) {
+  if(argc < 2) {
+    return 2;
+  }
+
+  return !palindrome(argv[1], strlen(argv[1]));
+}