<cwctype>
#include <wctype.h> namespace std { using ::wint_t; using ::wctrans_t; using ::wctype_t; using ::iswalnum; using ::iswalpha; using ::iswcntrl; using ::iswctype; using ::iswdigit; using ::iswgraph; using ::iswlower; using ::iswprint; using ::iswpunct; using ::iswspace; using ::iswupper; using ::iswxdigit; using ::towctrans; using ::towlower; using ::towupper; using ::wctrans; using ::wctype; };
Include the standard header <cwctype>
to effectively include the standard header
<wctype.h>
within the
std
namespace.
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