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Unix Version 7 - man page for atof (v7 section 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, integer, and long integer
       representation respectively.  The first unrecognized 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' fol-
       lowed 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)


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