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<cwchar>

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

#if <TRADITIONAL C HEADERS>
   #include <wchar.h>
namespace std {
   using ::btowc; 
   using ::fgetwc; 
   using ::fgetws; 
   using ::fputwc;
   using ::fputws; 
   using ::fwide; 
   using ::fwprintf;
   using ::fwscanf; 
   using ::getwc; 
   using ::getwchar;
   using ::mbrlen; 
   using ::mbrtowc; 
   using ::mbsinit; 
   using ::mbsrtowcs;
   using ::mbstate_t; 
   using ::putwc; 
   using ::putwchar;
   using ::size_t; 
   using ::swprintf; 
   using ::swscanf; 
   using ::tm; 
   using ::ungetwc;
   using ::vfwprintf; 
   using ::vswprintf; 
   using ::vwprintf;
   using ::wcrtomb; 
   using ::wcscat;
   using ::wcschr; 
   using ::wcscmp; 
   using ::wcscoll;
   using ::wcscpy; 
   using ::wcscspn; 
   using ::wcsftime;
   using ::wcslen;
   using ::wcsncat; 
   using ::wcsncmp; 
   using ::wcsncpy;
   using ::wcspbrk; 
   using ::wcsrchr; 
   using ::wcsrtombs; 
   using ::wcsspn;
   using ::wcsstr;
   using ::wcstod; 
   using ::wcstok; 
   using ::wcstol; 
   using ::wcstoul; 
   using ::wcsxfrm; 
   using ::wctob;
   using ::wint_t;
   using ::wmemchr; 
   using ::wmemcmp; 
   using ::wmemcpy;
   using ::wmemmove; 
   using ::wmemset; 
   using ::wprintf; 
   using ::wscanf;
}
#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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