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man:strfmon_l

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

NAME

     strfmon, strfmon_l - convert monetary value to a string

SYNOPSIS

     #include <monetary.h>
     ssize_t strfmon(char *s, size_t max, const char *format,
     ...);
     ssize_t strfmon_l(char *s, size_t max, locale_t locale,
     const char *" format , ...);

DESCRIPTION

     The  strfmon() function formats the specified monetary amount according
     to the current locale and format specification format  and  places  the
     result in the character array s of size max.
     The  strfmon_l()  function  performs the same task, but uses the locale
     specified by locale.  The  behavior  of  strfmon_l()  is  undefined  if
     locale is the special locale object LC_GLOBAL_LOCALE (see duplocale(3))
     or is not a valid locale object handle.
     Ordinary characters in format are copied to s without conversion.  Con-
     version specifiers are introduced by a '%' character.  Immediately fol-
     lowing it there can be zero or more of the following flags:
     =f     The single-byte character f is used as the numeric fill  charac-
            ter  (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 positive, "-"
            for negative.
     !      Omit the currency symbol.
  1. 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 deci-
     mal  digit string.  If the number of digits left of the radix character
     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 dec-
     imal digit string.  The amount being formatted is rounded to the speci-
     fied 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 differ 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 undefined.

ATTRIBUTES

     For   an   explanation   of   the  terms  used  in  this  section,  see
     attributes(7).
     allbox; lb  lb  lb  l  l  l.   Interface Attribute Value  T{  strfmon()
     T}   Thread   safety     MT-Safe   locale  T{  strfmon_l()  T}   Thread
     safety  MT-Safe

CONFORMING TO

     POSIX.1-2001, POSIX.1-2008.

EXAMPLE

     The call
         strfmon(buf, sizeof(buf), "[%^=*#6n] [%=*#6i]",
                 1234.567, 1234.567);
     outputs
         [ **1234,57] [EUR **1 234,57]
     in the nl_NL locale.  The de_DE, de_CH, en_AU, and en_GB locales yield
         [ **1234,57 ] [ **1.234,57 EUR] [ Fr. **1234.57] [ CHF  **1'234.57]
         [ $**1234.57] [ AUD**1,234.57] [ **1234.57] [ GBP**1,234.57]

SEE ALSO

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

COLOPHON

     This  page  is  part of release 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at
     https://www.kernel.org/doc/man-pages/.

Linux 2017-09-15 STRFMON(3)

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