extras_wchar.h

Defines non-standard facilities for wide characters.

  #include <extras/extras_wchar.h> 
  wchar_t *itow(int n, wchar_t *str, int radix); 
  double watof(const wchar_t *str); 
  wchar_t *wcsdup(const wchar_t *str); 
  int wcsicmp(const wchar_t *s1, const wchar_t *s2); 
  int wcsicoll(const wchar_t *s1, const wchar_t *s2); 
  wchar_t *wcslwr(wchar_t *str); 
  int wcsncoll(const wchar_t *s1, const wchar_t *s2, size_t max); 
  int wcsnicmp(const wchar_t *s1, const wchar_t *s2, size_t n); 
  int wcsnicoll(const wchar_t *s1, const wchar_t *s2, size_t max); 
  wchar_t *wcsnset(wchar_t *str, wchar_t wc, size_t n); 
  wchar_t *wcsrev(wchar_t *str); 
  wchar_t *wcsset(wchar_t *str, wchar_t wc); 
  wchar_t *wcsspnp(const wchar_t *s1, const wchar_t *s2); 
  wchar_t *wcsupr(wchar_t *str); 
  wchar_t *wstrrev(wchar_t * str); 
  int wtoi(const wchar_t *a);

These non-standard, wide-character functions operate identically to regular-sized character functions in the rest of the standard library.

The table below matches these wide character functions to equivalent char-based functions.

Table 1. Wide-character Functions Equivalent to Char-based Functions
Function	Wide Character Equivalent	Header File
itow()	itoa()	extras_wchar.h
watof()	atof()	stdlib.h
wcsdup()	strdup()	extras_wchar.h
wcsicmp()	stricmp()	extras_wchar.h
wcsicoll()	stricoll()	extras_wchar.h
wcslwr()	strlwr()	extras_wchar.h
wcsncoll()	strncoll()	extras_wchar.h
wcsnicmp()	strnicmp()	extras_wchar.h
wcsnicoll()	strnicoll()	extras_wchar.h
wcsnset()	strnset()	extras_wchar.h
wcsrev()	strrev()	extras_wchar.h
wcsset()	strset()	extras_wchar.h
wcsspnp()	strspnp()	extras_wchar.h
wcsupr()	strupr()	extras_wchar.h
wstrrev()	strrrev()	extras_wchar.h
wtoi()	atoi()	stdlib.h