1ATOF(3)                    Library Functions Manual                    ATOF(3)
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NAME

6       atof, atoi, atol - convert ASCII to numbers
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SYNOPSIS

9       double atof(nptr)
10       char *nptr;
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12       atoi(nptr)
13       char *nptr;
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15       long atol(nptr)
16       char *nptr;
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DESCRIPTION

19       These  functions convert a string pointed to by nptr to floating, inte‐
20       ger, and long integer representation respectively.  The first  unrecog‐
21       nized character ends the string.
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23       Atof recognizes an optional string of tabs and spaces, then an optional
24       sign, then a string of digits optionally containing  a  decimal  point,
25       then an optional `e' or `E' followed by an optionally signed integer.
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27       Atoi  and atol recognize an optional string of tabs and spaces, then an
28       optional sign, then a string of digits.
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SEE ALSO

31       scanf(3)
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BUGS

34       There are no provisions for overflow.
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38                                                                       ATOF(3)