_wcslwr_s.c File Reference

#include <precomp.h>

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Functions
int	_wcslwr_s (wchar_t *str, size_t n)

Function Documentation

_wcslwr_s()

int _wcslwr_s	(	wchar_t *	str,
		size_t	n
	)

Definition at line 16 of file _wcslwr_s.c.

{
  wchar_t *ptr=str;
  if (!str || !n)
  {
    if (str) *str = '\0';
    *_errno() = EINVAL;
    return EINVAL;
  }
 
  while (n--)
  {
    if (!*ptr) return 0;
    *ptr = towlower(*ptr);
    ptr++;
  }
 
  /* MSDN claims that the function should return and set errno to
   * ERANGE, which doesn't seem to be true based on the tests. */
  *str = '\0';
  *_errno() = EINVAL;
  return EINVAL;
}