term% cat index.txt ATOF(3) Library Functions Manual ATOF(3)
NAME
atof, atoi, atol - convert ASCII to numbers
SYNOPSIS
double atof(nptr)
char *nptr;
atoi(nptr)
char *nptr;
long atol(nptr)
char *nptr;
DESCRIPTION
These functions convert a string pointed to by nptr to floating, inte‐
ger, and long integer representation respectively. The first unrecog‐
nized character ends the string.
Atof recognizes an optional string of tabs and 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 tabs and spaces, then an
optional sign, then a string of digits.
SEE ALSO
scanf(3)
BUGS
There are no provisions for overflow.
ATOF(3)