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a64l(3C)		 Standard C Library Functions		      a64l(3C)

NAME
       a64l, l64a - convert between long integer and base-64 ASCII string

SYNOPSIS
       #include	<stdlib.h>

       long a64l(const char *s);

       char *l64a(long l);

DESCRIPTION
       These  functions	 maintain  numbers  stored in base-64 ASCII characters
       that define a notation by which long integers can be represented	by  up
       to  six	characters.  Each character represents a "digit" in a radix-64
       notation.

       The characters used to represent	"digits" are as	follows:

       +-----------------------------+--------------------------------+
       |	 Character	     |		 Digit		      |
       |	     .		     |		   0		      |
       |	     /		     |		   1		      |
       |	    0-9		     |		  2-11		      |
       |	    A-Z		     |		 12-37		      |
       |	    a-z		     |		 38-63		      |
       +-----------------------------+--------------------------------+

       The a64l() function takes a pointer to a	null-terminated	base-64	repre-
       sentation  and  returns	a  corresponding  long	value.	 If the	string
       pointed to by s contains	more than  six	characters,  a64l()  uses  the
       first six.

       The  a64l() function scans the character	string from left to right with
       the least significant digit on the left,	decoding each character	 as  a
       6-bit radix-64 number.

       The  l64a() function takes a long argument and returns a	pointer	to the
       corresponding base-64 representation. If	the argument is	0, l64a()  re-
       turns a pointer to a null string.

       The  value  returned  by	 l64a()	is a pointer into a static buffer, the
       contents	of which are overwritten by each call.	In the case of	multi-
       threaded	applications, the return value is a pointer to thread specific
       data.

ATTRIBUTES
       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE	TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO
       attributes(5), standards(5)

SunOS 5.10			  24 Jul 2002			      a64l(3C)

NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO

Want to link to this manual page? Use this URL:
<https://www.freebsd.org/cgi/man.cgi?query=a64l&sektion=3c&manpath=SunOS+5.10>

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