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ATOL(P)			   POSIX Programmer's Manual		       ATOL(P)

NAME
       atol, atoll - convert a string to a long integer

SYNOPSIS
       #include <stdlib.h>

       long atol(const char *str);
       long long atoll(const char *nptr);

DESCRIPTION
       The call atol(str) shall be equivalent to:

	      strtol(str, (char **)NULL, 10)

       The call atoll(str) shall be equivalent to:

	      strtoll(nptr, (char **)NULL, 10)

       except  that  the handling of errors may differ. If the value cannot be
       represented, the behavior is undefined.

RETURN VALUE
       These functions shall return the converted value if the	value  can  be
       represented.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       The  atol() function is subsumed by strtol() but is retained because it
       is used extensively in existing code. If the number is not known to  be
       in  range,  strtol()  should  be used because atol() is not required to
       perform any error checking.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       strtol()	 ,  the	 Base  Definitions  volume  of	 IEEE Std 1003.1-2001,
       <stdlib.h>

COPYRIGHT
       Portions	 of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating	System	Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003	by  the	 Institute  of
       Electrical  and	Electronics  Engineers, Inc and The Open Group. In the
       event of any discrepancy between this version and the original IEEE and
       The  Open Group Standard, the original IEEE and The Open Group Standard
       is the referee document. The original Standard can be  obtained	online
       at http://www.opengroup.org/unix/online.html .

IEEE/The Open Group		     2003			       ATOL(P)
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