l64a man page on Mandriva

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A64L(3)			   Linux Programmer's Manual		       A64L(3)

NAME
       a64l, l64a - convert between long and base-64

SYNOPSIS
       #include <stdlib.h>

       long a64l(char *str64);

       char *l64a(long value);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       a64l(), l64a(): _SVID_SOURCE || _XOPEN_SOURCE >= 500

DESCRIPTION
       These  functions	 provide a conversion between 32-bit long integers and
       little-endian base-64 ASCII strings (of length zero to  six).   If  the
       string  used  as	 argument for a64l() has length greater than six, only
       the first six bytes are used.  If the type long has more than 32	 bits,
       then  l64a() uses only the low order 32 bits of value, and a64l() sign-
       extends its 32-bit result.

       The 64 digits in the base-64 system are:

	      '.'  represents a 0
	      '/'  represents a 1
	      0-9  represent  2-11
	      A-Z  represent 12-37
	      a-z  represent 38-63

       So 123 = 59*64^0 + 1*64^1 = "v/".

CONFORMING TO
       POSIX.1-2001.

NOTES
       The value returned by a64l() may be a pointer to a static buffer,  pos‐
       sibly overwritten by later calls.

       The  behavior  of l64a() is undefined when value is negative.  If value
       is zero, it returns an empty string.

       These functions are broken in glibc before 2.2.5 (puts most significant
       digit first).

       This is not the encoding used by uuencode(1).

SEE ALSO
       uuencode(1), strtoul(3)

COLOPHON
       This  page  is  part of release 3.24 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

				  2007-07-26			       A64L(3)
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