stringtointeger&integertostring

strtoul, _strtoul_l, wcstoul, _wcstoul_l
Convert strings to an unsigned long-integer value.

 
unsigned long strtoul(
   const char *nptr,
   char **endptr,
   int base
);
unsigned long _strtoul_l(
   const char *nptr,
   char **endptr,
   int base,
   _locale_t locale
);
unsigned long wcstoul(
   const wchar_t *nptr,
   wchar_t **endptr,
   int base
);
unsigned long _wcstoul_l(
   const wchar_t *nptr,
   wchar_t **endptr,
   int base,
   _locale_t locale
);
 

Converts an integer to a string. More secure versions of these functions are available; see _itoa_s, _i64toa_s, _ui64toa_s, _itow_s, _i64tow_s, _ui64tow_s.

 
char *_itoa(
   int value,
   char *str,
   int radix
);
char *_i64toa(
   __int64 value,
   char *str,
   int radix
);
char * _ui64toa(
   unsigned _int64 value,
   char *str,
   int radix
);
wchar_t * _itow(
   int value,
   wchar_t *str,
   int radix
);
wchar_t * _i64tow(
   __int64 value,
   wchar_t *str,
   int radix
);
wchar_t * _ui64tow(
   unsigned __int64 value,
   wchar_t *str,
   int radix
);
template
char *_itoa(
   int value,
   char (&str)[size],
   int radix
); // C++ only
template
char *_i64toa(
   __int64 value,
   char (&str)[size],
   int radix
); // C++ only
template
char * _ui64toa(
   unsigned _int64 value,
   char (&str)[size],
   int radix
); // C++ only
template
wchar_t * _itow(
   int value,
   wchar_t (&str)[size],
   int radix
); // C++ only
template
wchar_t * _i64tow(
   __int64 value,
   wchar_t (&str)[size],
   int radix
); // C++ only
template
wchar_t * _ui64tow(
   unsigned __int64 value,
   wchar_t (&str)[size],
   int radix
); // C++ only