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:
fThe 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 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 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 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 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.
iOne argument of type double is converted using the locale's international currency format.
nOne argument of type double is converted using the locale's national currency format.
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.
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 ]
This page is part of release 2.79 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/.
|
Copyright (c) 2000 Andries Brouwer (aebcwi.nl) This is free documentation; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU General Public License's references to "object code" and "executables" are to be interpreted as the output of any document formatting or typesetting system, including intermediate and printed output. This manual is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this manual; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |