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 int atoi(const char *str); #include 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