| Routine  | Use  | 
        
            | atof,
            _atof_l, _wtof, _wtof_l | Convert string to float | 
        
            | atoi,
            _atoi_l, _wtoi, _wtoi_l | Convert string to int | 
        
            | _atoi64,
            _atoi64_l, _wtoi64, _wtoi64_l | Convert string to __int64 | 
        
            | atol,
            _atol_l, _wtol, _wtol_l | Convert string to long | 
        
            | _ecvt,
            _ecvt_s | Convert double to string of
            specified length | 
        
            | _fcvt,
            _fcvt_s | Convert double to string with
            specified number of digits following decimal point | 
        
            | _gcvt,
            _gcvt_s | Convert double number to string;
            store string in buffer | 
        
            | _itoa,
            _i64toa, _ui64toa, _itow, _i64tow, _ui64tow, _itoa_s,
            _i64toa_s, _ui64toa_s, _itow_s, _i64tow_s, _ui64tow_s | Convert int or __int64 to
            string | 
        
            | _ltoa,
            _ltow, _ltoa_s,
            _ltow_s | Convert long to string | 
        
            | strtod,
            _strtod_l, wcstod, _wcstod_l | Convert string to double | 
        
            | strtol,
            wcstol, _strtol_l, _wcstol_l | Convert string to long integer | 
        
            | strtoul,
            _strtoul_l, wcstoul, _wcstoul_l | Convert string to unsigned long
            integer | 
        
            | _ultoa,
            _ultow, _ultoa_s,
            _ultow_s | Convert unsigned long to
            string | 
        
            | atof,
            _atof_l, _wtof, _wtof_l | Convert wide-character string to a double | 
        
            | atoi,
            _atoi_l, _wtoi, _wtoi_l | Convert wide-character string to int | 
        
            | _atoi64,
            _atoi64_l, _wtoi64, _wtoi64_l | Convert wide-character string to __int64 | 
        
            | atol,
            _atol_l, _wtol, _wtol_l | Convert wide-character string to long |