atoi(3) BSD Library Functions Manual atoi(3)
NAME
atoi, atoi_l -- convert ASCII string to integer
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <stdlib.h>
int
atoi(const char *str);
#include <xlocale.h>
int
atoi_l(const char *str, locale_t loc);
DESCRIPTION
The atoi() function converts the initial portion of the string pointed to
by str to int representation.
It is equivalent to:
(int)strtol(str, (char **)NULL, 10);
While the atoi() function uses the current locale, the atoi_l() function
may be passed a locale directly. See xlocale(3) for more information.
IMPLEMENTATION NOTES
The atoi() function is not thread-safe and also not async-cancel safe.
The atoi() function has been deprecated by strtol() and should not be
used in new code.
ERRORS
The function atoi() need not affect the value of errno on an error.
SEE ALSO
atof(3), atol(3), strtod(3), strtol(3), strtoul(3), xlocale(3)
STANDARDS
The atoi() function conforms to ISO/IEC 9945-1:1990 (``POSIX.1''),
ISO/IEC 9899:1990 (``ISO C90''), and ISO/IEC 9899:1999 (``ISO C99'').
BSD June 4, 1993 BSD
Mac OS X 10.6 - Generated Thu Sep 17 20:18:30 CDT 2009