expand_number man page on GhostBSD

expand_number man page on GhostBSD

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EXPAND_NUMBER(3)	 BSD Library Functions Manual	      EXPAND_NUMBER(3)

NAME
     expand_number — format a number from human readable form

LIBRARY
     System Utilities Library (libutil, -lutil)

SYNOPSIS
     #include <libutil.h>

     int
     expand_number(const char *buf, int64_t *num);

DESCRIPTION
     The expand_number() function unformats the buf string and stores a signed
     64-bit quantity at address pointed out by the num argument.

     The expand_number() function follows the SI power of two convention.

     The prefixes are:

	   Prefix    Description    Multiplier
	   k	     kilo	    1024
	   M	     mega	    1048576
	   G	     giga	    1073741824
	   T	     tera	    1099511627776
	   P	     peta	    1125899906842624
	   E	     exa	    1152921504606846976

RETURN VALUES
     Upon successful completion, the value 0 is returned; otherwise the
     value -1 is returned and the global variable errno is set to indicate the
     error.

ERRORS
     The expand_number() function will fail if:

     [EINVAL]		The given string contains no digits.

     [EINVAL]		An unrecognized prefix was given.

     [ERANGE]		Result doesn't fit into 64 bits.

SEE ALSO
     humanize_number(3)

HISTORY
     The expand_number() function first appeared in FreeBSD 6.3.

BSD				April 16, 2007				   BSD

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