atoi, atol, atoll - convert a string to an integer
The atoi() function converts the initial portion of the string pointed to by
int. The behavior is the same as
strtol(nptr, NULL, 10);
except that atoi() does not detect errors.
The converted value or 0 on error.
POSIX.1 leaves the return value of atoi() on error unspecified. On glibc, musl libc, and uClibc, 0 is returned on error.
This page is part of release 5.10 of the Linux
man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.