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[lib/c] Add wctype.h

I dunno that we are going to implement these functions ever, but ...

--- /dev/null

+++ b/rootdir/include/scc/wctype.h

@@ -1,0 +1,30 @@

+#ifndef _WCTYPE_H

+#define _WCTYPE_H

+

+/* TODO: This is only a placeholder */

+typedef int wint_t;

+typedef int wctrans_t;

+typedef int wctype_t;

+

+#define WEOF -1

+

+extern int iswalnum(wint_t wc);

+extern int iswalpha(wint_t wc);

+extern int iswblank(wint_t wc);

+extern int iswcntrl(wint_t wc);

+extern int iswdigit(wint_t wc);

+extern int iswgraph(wint_t wc);

+extern int iswlower(wint_t wc);

+extern int iswprint(wint_t wc);

+extern int iswpunct(wint_t wc);

+extern int iswspace(wint_t wc);

+extern int iswupper(wint_t wc);

+extern int iswxdigit(wint_t wc);

+extern int iswctype(wint_t wc, wctype_t desc);

+extern wctype_t wctype(const char *property);

+extern wint_t towlower(wint_t wc);

+extern wint_t towupper(wint_t wc);

+extern wint_t towctrans(wint_t wc, wctrans_t desc);

+extern wctrans_t wctrans(const char *property);

+

+#endif