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[locale.moneypunct.virtuals]
# 28 Text processing library [[text]](./#text)
## 28.3 Localization library [[localization]](localization#locale.moneypunct.virtuals)
### 28.3.4 Standard locale categories [[locale.categories]](locale.categories#locale.moneypunct.virtuals)
#### 28.3.4.7 The monetary category [[category.monetary]](category.monetary#locale.moneypunct.virtuals)
#### 28.3.4.7.4 Class template moneypunct [[locale.moneypunct]](locale.moneypunct#virtuals)
#### 28.3.4.7.4.3 Virtual functions [locale.moneypunct.virtuals]
[🔗](#lib:moneypunct,do_decimal_point)
`charT do_decimal_point() const;
`
[1](#1)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4590)
*Returns*: The radix separator to use
in case do_frac_digits() is greater than zero[.](#1.sentence-1)[231](#footnote-231 "In common U.S. locales this is '.'.")
[🔗](#lib:moneypunct,do_thousands_sep)
`charT do_thousands_sep() const;
`
[2](#2)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4605)
*Returns*: The digit group separator to use
in case do_grouping() specifies a digit grouping pattern[.](#2.sentence-1)[232](#footnote-232 "In common U.S. locales this is ','.")
[🔗](#lib:moneypunct,do_grouping)
`string do_grouping() const;
`
[3](#3)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4620)
*Returns*: A pattern defined identically as, but not necessarily equal to,
the result of numpunct<charT>::do_grouping()[.](#3.sentence-1)[233](#footnote-233 "To specify grouping by 3s, the value is &quot;\003&quot; not &quot;3&quot;.")
[🔗](#lib:moneypunct,do_curr_symbol)
`string_type do_curr_symbol() const;
`
[4](#4)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4636)
*Returns*: A string to use as the currency identifier symbol[.](#4.sentence-1)
[*Note [1](#note-1)*:
For specializations where the second template parameter is true,
this is typically four characters long:
a three-letter code as specified by ISO 4217[[bib]](bibliography#bib:iso4217 "Bibliography") followed by a space[.](#4.sentence-2)
— *end note*]
[🔗](#lib:moneypunct,do_positive_sign)
`string_type do_positive_sign() const;
string_type do_negative_sign() const;
`
[5](#5)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4655)
*Returns*: do_positive_sign() returns the string to use to indicate a positive monetary value;[234](#footnote-234 "This is usually the empty string.")do_negative_sign() returns the string to use to indicate a negative value[.](#5.sentence-1)
[🔗](#lib:moneypunct,do_frac_digits)
`int do_frac_digits() const;
`
[6](#6)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4672)
*Returns*: The number of digits after the decimal radix separator, if any[.](#6.sentence-1)[235](#footnote-235 "In common U.S.&nbsp;locales, this is 2.")
[🔗](#lib:moneypunct,do_pos_format)
`pattern do_pos_format() const;
pattern do_neg_format() const;
`
[7](#7)
[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4688)
*Returns*: The specializations required in Table [92](locale.category#tab:locale.spec "Table 92: Required specializations") ([[locale.category]](locale.category "28.3.3.1.2.1Type locale::category")), namely
- [(7.1)](#7.1)
moneypunct<char>,
- [(7.2)](#7.2)
moneypunct<wchar_t>,
- [(7.3)](#7.3)
moneypunct<char, true>, and
- [(7.4)](#7.4)
moneypunct<wchar_t, true>,
return an object of type pattern initialized to { symbol, sign, none, value }[.](#7.sentence-1)[236](#footnote-236 "Note that the international symbol returned by do_­curr_­symbol() usually contains a space, itself; for example, &quot;USD &quot;.")
[231)](#footnote-231)[231)](#footnoteref-231)
In common U.S. locales this is '.'[.](#footnote-231.sentence-1)
[232)](#footnote-232)[232)](#footnoteref-232)
In common U.S. locales this is ','[.](#footnote-232.sentence-1)
[233)](#footnote-233)[233)](#footnoteref-233)
To specify grouping by 3s,
the value is "\003" *not* "3"[.](#footnote-233.sentence-1)
[234)](#footnote-234)[234)](#footnoteref-234)
This is usually the empty string[.](#footnote-234.sentence-1)
[235)](#footnote-235)[235)](#footnoteref-235)
In common U.S. locales, this is 2[.](#footnote-235.sentence-1)
[236)](#footnote-236)[236)](#footnoteref-236)
Note that the international symbol returned by do_curr_symbol() usually contains a space, itself;
for example, "USD "[.](#footnote-236.sentence-1)