witow.c File Reference

#include <precomp.h>

Include dependency graph for witow.c:

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Functions
wchar_t *	_i64tow (__int64 value, wchar_t *string, int radix)
wchar_t *	_ui64tow (unsigned __int64 value, wchar_t *string, int radix)

Function Documentation

_i64tow()

wchar_t * _i64tow	(	__int64	value,
		wchar_t *	string,
		int	radix
	)

Definition at line 19 of file witow.c.

{
  wchar_t tmp[65];
  wchar_t* tp = tmp;
  int i;
  unsigned v;
  int sign;
  wchar_t* sp;
 
  if (radix > 36 || radix <= 1) {
    _set_errno(EDOM);
    return 0;
  }
 
  sign = (radix == 10 && value < 0);
  if (sign)
    v = -value;
  else
    v = (unsigned)value;
  while (v || tp == tmp) {
    i = v % radix;
    v = v / radix;
    if (i < 10)
      *tp++ = i+L'0';
    else
      *tp++ = i + L'a' - 10;
  }
 
  if (string == 0)
    string = (wchar_t*)malloc(((tp-tmp)+sign+1)*sizeof(wchar_t));
  sp = string;
 
  if (sign)
    *sp++ = L'-';
  while (tp > tmp)
    *sp++ = *--tp;
  *sp = 0;
  return string;
}

_ui64tow()

wchar_t * _ui64tow	(	unsigned __int64	value,
		wchar_t *	string,
		int	radix
	)

Definition at line 62 of file witow.c.

{
  wchar_t tmp[65];
  wchar_t* tp = tmp;
  long i;
  unsigned long v = value;
  wchar_t* sp;
 
  if (radix > 36 || radix <= 1) {
    _set_errno(EDOM);
    return 0;
  }
 
  while (v || tp == tmp) {
    i = v % radix;
    v = v / radix;
    if (i < 10)
      *tp++ = i+L'0';
    else
      *tp++ = i + L'a' - 10;
  }
 
  if (string == 0)
    string = (wchar_t*)malloc(((tp-tmp)+1)*sizeof(wchar_t));
  sp = string;
 
  while (tp > tmp)
    *sp++ = *--tp;
  *sp = 0;
  return string;
}