ATOF(3)ATOF(3)NAME
atof, atoi, atol - convert strings 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
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.
RETURN VALUE
Atof , atoi , and atol return the converted value.
BUGS
There are no provisions for overflow.
SEE ALSOscanf(3)7th Edition August 1, 1992 ATOF(3)