X-Git-Url: https://pd.if.org/git/?p=pdclib;a=blobdiff_plain;f=functions%2Fwctype%2Fiswupper.c;fp=functions%2Fwctype%2Fiswupper.c;h=c011772e55291b4ff90eed7cb55ad8736c60f173;hp=0000000000000000000000000000000000000000;hb=06630c64aa2ac5b8ec55c3c0509e69da4d81a22b;hpb=e6e196c9d74a3a1d88b244fb0e5a759c47d3da84

diff --git a/functions/wctype/iswupper.c b/functions/wctype/iswupper.c
new file mode 100644
index 0000000..c011772
--- /dev/null
+++ b/functions/wctype/iswupper.c
@@ -0,0 +1,31 @@
+/* iswupper( wint_t )
+
+   This file is part of the Public Domain C Library (PDCLib).
+   Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#include <wctype.h>
+#ifndef REGTEST
+#include <_PDCLIB_locale.h>
+
+int iswupper( wint_t wc )
+{
+    return iswctype( wc, _PDCLIB_CTYPE_UPPER );
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    TESTCASE(!iswupper(L'a'));
+    TESTCASE(!iswupper(L'e'));
+    TESTCASE(!iswupper(L'z'));
+    TESTCASE(iswupper(L'A'));
+    TESTCASE(iswupper(L'E'));
+    TESTCASE(iswupper(L'Z'));
+    return TEST_RESULTS;
+}
+#endif