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Command: atof | Section: 3 | Source: UNIX v7 | File: atof.3
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)