1 files changed, 12 insertions, 0 deletions
diff --git a/sys/base/string/upper.c b/sys/base/string/upper.c
new file mode 100644
index 0000000..ab692c1
--- /dev/null
+++ b/sys/base/string/upper.c
@@ -0,0 +1,12 @@
+#include "internal.h"
+
+// Upper will force all runes in the string to be uppercase.
+void
+str·upper(string s)
+{
+    byte *b, *e;
+    b = s;
+    e = b + str·len(s);
+    while (b++ != e) 
+        *b = toupper(*b);
+}