newlib/newlib/libc/stdlib/atoi.c

55 lines
925 B
C

/*
FUNCTION
<<atoi>>, <<atol>>---string to integer
INDEX
atoi
INDEX
atol
ANSI_SYNOPSIS
#include <stdlib.h>
int atoi(const char *<[s]>);
long atol(const char *<[s]>);
TRAD_SYNOPSIS
#include <stdlib.h>
int atoi(<[s]>)
char *<[s]>;
long atol(<[s]>)
char *<[s]>;
DESCRIPTION
<<atoi>> converts the initial portion of a string to an <<int>>.
<<atol>> converts the initial portion of a string to a <<long>>.
<<atoi(s)>> is implemented as <<(int)strtol(s, NULL, 10).>>
<<atol(s)>> is implemented as <<strtol(s, NULL, 10).>>
RETURNS
The functions return the converted value, if any. If no conversion was
made, <<0>> is returned.
PORTABILITY
<<atoi>> is ANSI.
No supporting OS subroutines are required.
*/
/*
* Andy Wilson, 2-Oct-89.
*/
#include <stdlib.h>
#include <_ansi.h>
int
_DEFUN (atoi, (s),
_CONST char *s)
{
return (int) strtol (s, NULL, 10);
}