Standards / Extensions | C or C++ | Dependencies |
---|---|---|
z/OS® UNIX | both | z/OS V1R5 |
#define _OPEN_SYS_ITOA_EXT
#include <stdlib.h>
char * ltoa(long l, char * buffer, int radix);
(void) sprintf(buffer, "%ld", l);
with
buffer the returned character string. When the radix is OCTAL, ltoa()
formats long l into an unsigned octal constant.
When the radix is HEX, ltoa() formats long l into
an unsigned hexadecimal constant. The hexadecimal value will include
lower case abcdef, as necessaryThis is a non-standard function. Even though the prototype given is commonly used by compilers on other platforms, there is no guarantee that this function will behave the same on all platforms, in all cases. You can use this function to help port applications from other platforms, but you should avoid using it when writing new applications, in order to ensure maximum portability.
String pointer (same as buffer) will be returned. When passed an invalid radix argument, function will return NULL and set errno to EINVAL.
/* CELEBL29
This example reads a long int and formats it to decimal, unsigned
octal, unsigned hexadecimal constants converted to a character
string.
*/
#define _OPEN_SYS_ITOA_EXT
#include <stdio.h>
#include <stdlib.h>
int main ()
{
long i;
char buffer [sizeof(long)*8+1];
printf ("Enter a number: ");
if (scanf ("%ld",&i) == 1) {
ltoa (i,buffer,DECIMAL);
printf ("decimal: %s\n",buffer);
ltoa (i,buffer,HEX);
printf ("hexadecimal: %s\n",buffer);
ltoa (i,buffer,OCTAL);
printf ("octal: %s\n",buffer);
}
return 0;
}
Output
decimal: 1234
hexadecimal: 4d2
octal: 2322