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Linux 2.6 - man page for strfmon (linux section 3)

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

       strfmon - convert monetary value to a string

       #include <monetary.h>

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

       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 specified, 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 handled in the default way, that is,
	      amounts are preceded by the locale's sign indication, for example, nothing for pos-
	      itive, "-" 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 character is smaller than this, the  representa-
       tion  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 format-
       ting.  The default is specified in the frac_digits and int_frac_digits items of	the  cur-
       rent  locale.   If  the	right  precision is 0, no radix character is printed.  (The radix
       character here is determined by	LC_MONETARY,  and  may	differ	from  that  specified  by

       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

       n      One argument of type double is converted using the locale's national currency  for-

       The strfmon() function returns the number of characters placed in the array s, not includ-
       ing 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

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

       The call

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


	   [ 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 spa-
       ces.  This may be a bug in the locale files.  The  Italian,  Australian,  Swiss	and  Por-
       tuguese 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 ]

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

       This  page  is  part of release 3.55 of the Linux man-pages project.  A description of the
       project,    and	  information	 about	  reporting    bugs,	can    be    found     at

Linux					    2000-12-05				       STRFMON(3)

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