_ltoa, _ltow (Windows CE 5.0)

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Developing an Application > Microsoft C Run-time Library for Windows CE > Run-time Library Reference

Convert a long integer to a string.

char *_ltoa(    longvalue,    char*string,    intradix);wchar_t *_ltow(    longvalue,    wchar_t*string,    intradix);

Parameters

• value
  Number to be converted.
• string
  String result.
• radix
  Base of value.

Return Values

Each of these functions returns a pointer to string.

There is no error return.

Remarks

The _ltoa function converts the digits of value to a null-terminated character string and stores the result (up to 33 bytes) in string.

The radix argument specifies the base of value, which must be in the range 2 – 36. If radix equals 10 and value is negative, the first character of the stored string is the minus sign (–).

_ltow is a wide-character version of _ltoa; the second argument and return value of _ltow are wide-character strings.

Each function is Microsoft-specific.

Generic-Text Routine Mappings

For more information about TCHAR.H routines, see Generic Text Mappings.

Example

/* ITOA.C: This program converts integers of various
 * sizes to strings in various radixes.
 */

#include <stdlib.h>
#include <stdio.h>

void main( void )
{
   char buffer[20];
   int  i = 3445;
   long l = -344115L;
   unsigned long ul = 1234567890UL;

   _itoa( i, buffer, 10 );
   printf( "String of integer %d (radix 10): %s\n", i, buffer );
   _itoa( i, buffer, 16 );
   printf( "String of integer %d (radix 16): 0x%s\n", i, buffer );
   _itoa( i, buffer, 2  );
   printf( "String of integer %d (radix 2): %s\n", i, buffer );

   _ltoa( l, buffer, 16 );
   printf( "String of long int %ld (radix 16): 0x%s\n", l, 
                                                    buffer );

   _ultoa( ul, buffer, 16 );
   printf( "String of unsigned long %lu (radix 16): 0x%s\n", ul,
                                                    buffer );
}

Output

String of integer 3445 (radix 10): 3445
String of integer 3445 (radix 16): 0xd75
String of integer 3445 (radix 2): 110101110101
String of long int -344115 (radix 16): 0xfffabfcd
String of unsigned long 1234567890 (radix 16): 0x499602d2

Requirements

OS Versions: Windows CE 2.0 and later.
Header: stdlib.h.
Link Library: coredll.dll.

See Also

_itoa | _ultoa

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