From fc00c656c96528112d05cf0edf8631bd5eaea446 Mon Sep 17 00:00:00 2001
From: Kacper <kacper@mail.openlinux.dev>
Date: Sun, 7 Dec 2025 20:10:31 +0100
Subject: Add build system scaffolding and libc headers

---
 lib/libc/wctype/iswupper.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 lib/libc/wctype/iswupper.c

(limited to 'lib/libc/wctype/iswupper.c')

diff --git a/lib/libc/wctype/iswupper.c b/lib/libc/wctype/iswupper.c
new file mode 100644
index 00000000..afe12049
--- /dev/null
+++ b/lib/libc/wctype/iswupper.c
@@ -0,0 +1,12 @@
+#include <libc.h>
+#include <wctype.h>
+
+int iswupper(wint_t wc)
+{
+	return towlower(wc) != wc;
+}
+
+weak int iswupper_l(wint_t wc, locale_t unused locale)
+{
+	return iswupper(wc);
+}
-- 
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