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

NAME

       strfmon - convert monetary value to a string

SYNOPSIS

       #include <monetary.h>

       ssize_t strfmon(char *s, size_t max, const char *format, ...);

DESCRIPTION

       The  strfmon()  function  formats the specified amounts according to the format specification format and places the result in the character
       array s of size max.

       Ordinary characters in format are copied to s without conversion.  Conversion specifiers are introduced by a  '%'  character.   Immediately
       following it there can be zero or more of the following flags:

       =f     The  single-byte	character  f is used as the numeric fill character (to be used with a left precision, see below).  When not speci-
	      fied, the space character is used.

       ^      Do not use any grouping characters that might be defined for the current locale.	By default, grouping is enabled.

       ( or + The ( flag indicates that negative amounts should be enclosed between parentheses.  The + flag indicates that signs should  be  han-
	      dled  in	the default way, that is, amounts are preceded by the locale's sign indication, for example, nothing for positive, "-" for
	      negative.

       !      Omit the currency symbol.

       -      Left justify all fields.	The default is right justification.

       Next, there may be a field width: a decimal digit string specifying a minimum field width in bytes.  The default is 0.	A  result  smaller
       than this width is padded with spaces (on the left, unless the left-justify flag was given).

       Next,  there may be a left precision of the form "#" followed by a decimal digit string.  If the number of digits left of the radix charac-
       ter is smaller than this, the representation is padded on the left with the numeric fill character.  Grouping characters are not counted in
       this field width.

       Next,  there  may  be  a  right precision of the form "." followed by a decimal digit string.  The amount being formatted is rounded to the
       specified number of digits prior to formatting.	The default is specified in the frac_digits  and  int_frac_digits  items  of  the  current
       locale.	 If the right precision is 0, no radix character is printed.  (The radix character here is determined by LC_MONETARY, and may dif-
       fer from that specified by LC_NUMERIC.)

       Finally, the conversion specification must be ended with a conversion character.  The three conversion characters are

       %      (In this case the entire specification must be exactly "%%".)  Put a '%' character in the result string.

       i      One argument of type double is converted using the locale's international currency format.

       n      One argument of type double is converted using the locale's national currency format.

RETURN VALUE

       The strfmon() function returns the number of characters placed in the array s, not  including  the  terminating	null  byte,  provided  the
       string,	including  the terminating null byte, fits.  Otherwise, it sets errno to E2BIG, returns -1, and the contents of the array is unde-
       fined.

CONFORMING TO

       Not in POSIX.1-2001.  Present on several other systems.

EXAMPLE

       The call

	   strfmon(buf, sizeof(buf), "[%^=*#6n] [%=*#6i]",
		   1234.567, 1234.567);

       outputs

	   [ fl **1234,57] [ NLG  **1 234,57]

       in the Dutch locale (with fl for "florijnen" and NLG for Netherlands Guilders).	The grouping character is very ugly because  it  takes	as
       much space as a digit, while it should not take more than half that, and will no doubt cause confusion.	Surprisingly, the "fl" is preceded
       and followed by a space, and "NLG" is preceded by one and followed by two spaces.  This may be a bug in the  locale  files.   The  Italian,
       Australian, Swiss and Portuguese locales yield

	   [ L. **1235] [ ITL  **1.235]
	   [ $**1234.57] [ AUD **1,234.57]
	   [Fr. **1234,57] [CHF  **1.234,57]
	   [ **1234$57Esc] [ **1.234$57PTE ]

SEE ALSO

       setlocale(3), sprintf(3), locale(7)

COLOPHON

       This  page is part of release 3.25 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/.

Linux								    2000-12-05								STRFMON(3)