NAME
atof, atoi, atol - convert ASCII to numbers
SYNOPSIS
#include <stdlib.h>
double atof(const char *nptr)
int atoi(const char *nptr)
long atol(const char *nptr)
DESCRIPTION
These functions convert a string pointed to by nptr to
floating, integer, and long integer representation respec-
tively. The first unrecognized character ends the string.
Atof recognizes an optional string of spaces, then an
optional sign, then a string of digits optionally containing
a decimal point, then an optional `e' or `E' followed by an
optionally signed integer.
Atoi and atol recognize an optional string of spaces, then
an optional sign, then a string of digits.
SEE ALSO
strtol(3), strtod(3), scanf(3).
BUGS
There are no provisions for overflow.