X-Git-Url: https://pd.if.org/git/?a=blobdiff_plain;f=functions%2Fwctype%2Fiswcntrl.c;fp=functions%2Fwctype%2Fiswcntrl.c;h=493a503ec1b88749aaf84eaa2f569092bc4c87cd;hb=06630c64aa2ac5b8ec55c3c0509e69da4d81a22b;hp=0000000000000000000000000000000000000000;hpb=e6e196c9d74a3a1d88b244fb0e5a759c47d3da84;p=pdclib

diff --git a/functions/wctype/iswcntrl.c b/functions/wctype/iswcntrl.c
new file mode 100644
index 0000000..493a503
--- /dev/null
+++ b/functions/wctype/iswcntrl.c
@@ -0,0 +1,30 @@
+/* iswcntrl( 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 iswcntrl( wint_t wc )
+{
+    return iswctype( wc, _PDCLIB_CTYPE_CNTRL );
+}
+
+#endif
+
+#ifdef TEST
+#include <_PDCLIB_test.h>
+
+int main( void )
+{
+    TESTCASE(iswcntrl(L'\0'));
+    TESTCASE(iswcntrl(L'\n'));
+    TESTCASE(iswcntrl(L'\v'));
+    TESTCASE(!iswcntrl(L'\t'));
+    TESTCASE(!iswcntrl(L'a'));
+    return TEST_RESULTS;
+}
+#endif