1 .\" Copyright (c) 2000 Andries Brouwer (aeb@cwi.nl)
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24 .TH STRFMON 3 2021-03-22 "Linux" "Linux Programmer's Manual"
26 strfmon, strfmon_l \- convert monetary value to a string
29 .B #include <monetary.h>
31 .BI "ssize_t strfmon(char *restrict " s ", size_t " max ,
32 .BI " const char *restrict " format ", ...);"
33 .BI "ssize_t strfmon_l(char *restrict " s ", size_t " max ", locale_t " locale ,
34 .BI " const char *restrict " format ", ...);"
39 function formats the specified monetary amount
40 according to the current locale
41 and format specification
44 result in the character array
51 function performs the same task,
53 the locale specified by
59 is the special locale object
63 or is not a valid locale object handle.
65 Ordinary characters in
70 Conversion specifiers are introduced by a \(aq%\(aq
72 Immediately following it there can be zero or more
73 of the following flags:
76 The single-byte character
78 is used as the numeric fill character (to be used with
79 a left precision, see below).
80 When not specified, the space character is used.
83 Do not use any grouping characters that might be defined
84 for the current locale.
85 By default, grouping is enabled.
88 The ( flag indicates that negative amounts should be enclosed between
90 The + flag indicates that signs should be handled
91 in the default way, that is, amounts are preceded by the locale's
92 sign indication, for example, nothing for positive, "\-" for negative.
95 Omit the currency symbol.
98 Left justify all fields.
99 The default is right justification.
101 Next, there may be a field width: a decimal digit string specifying
102 a minimum field width in bytes.
104 A result smaller than this width is padded with spaces
105 (on the left, unless the left-justify flag was given).
107 Next, there may be a left precision of the form "#" followed by
108 a decimal digit string.
109 If the number of digits left of the
110 radix character is smaller than this, the representation is
111 padded on the left with the numeric fill character.
112 Grouping characters are not counted in this field width.
114 Next, there may be a right precision of the form "." followed by
115 a decimal digit string.
116 The amount being formatted is rounded to
117 the specified number of digits prior to formatting.
118 The default is specified in the
122 items of the current locale.
123 If the right precision is 0, no radix character is printed.
124 (The radix character here is determined by
126 and may differ from that specified by
129 Finally, the conversion specification must be ended with a
130 conversion character.
131 The three conversion characters are
134 (In this case, the entire specification must be exactly "%%".)
135 Put a \(aq%\(aq character in the result string.
140 is converted using the locale's international currency format.
145 is converted using the locale's national currency format.
149 function returns the number of characters placed
152 not including the terminating null byte,
153 provided the string, including the terminating null byte, fits.
158 returns \-1, and the contents of the array is undefined.
160 For an explanation of the terms used in this section, see
168 Interface Attribute Value
171 T} Thread safety MT-Safe locale
174 T} Thread safety MT-Safe
180 POSIX.1-2001, POSIX.1-2008.
186 strfmon(buf, sizeof(buf), "[%\(ha=*#6n] [%=*#6i]",
195 [€ **1234,57] [EUR **1 234,57]
212 [ **1234,57 €] [ **1.234,57 EUR]
213 [ Fr. **1234.57] [ CHF **1\(aq234.57]
214 [ $**1234.57] [ AUD**1,234.57]
215 [ £**1234.57] [ GBP**1,234.57]