1 files changed, 15 insertions, 0 deletions
diff --git a/Tests/RunCMake/PrintHelpers/rot13.c b/Tests/RunCMake/PrintHelpers/rot13.c
new file mode 100644
index 0000000..053bebd
--- /dev/null
+++ b/Tests/RunCMake/PrintHelpers/rot13.c
@@ -0,0 +1,15 @@
+#include "rot13.h"
+
+void rot13(char* in)
+{
+  char* end = in + strlen(in);
+  for (char* c = in; c < end; c++) {
+    if (*c >= 'a' && *c <= 'z') {
+      *c += (*c < 'n') ? 13 : -13;
+      continue;
+    }
+    if (*c >= 'A' && *c <= 'Z') {
+      *c += (*c < 'N') ? 13 : -13;
+    }
+  }
+}