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<cwctype>

Defines the macros traditionally defined in the Standard C library header <wctype.h>.


#if <TRADITIONAL C HEADERS>
   #include <wctype.h>
namespace std {
   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 ::wctrans_t; 
   using ::wctype;
   using ::wctype_t;
   using ::wint_t; 
}

#undef iswalnum
#undef iswalpha
#undef iswcntrl
#undef iswctype
#undef iswdigit
#undef iswgraph
#undef iswlower
#undef iswprint
#undef iswpunct
#undef iswspace
#undef iswupper
#undef iswxdigit
#undef towctrans
#undef towlower
#undef towupper
#undef wctrans
#undef wctype

#endif

Including this header also ensures that the names declared with external linkage in the Standard C library header are declared in the std namespace. In this implementation, the names may or may not also be declared in the global namespace, depending on the specific translation environment.

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