ATOF(3) Library Functions Manual ATOF(3)
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 respectively. The first unrecog-
nized 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.
7th Edition May 15, 1985 ATOF(3)
