148 lines
4.6 KiB
Markdown
148 lines
4.6 KiB
Markdown
[locale.moneypunct.virtuals]
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# 28 Text processing library [[text]](./#text)
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## 28.3 Localization library [[localization]](localization#locale.moneypunct.virtuals)
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### 28.3.4 Standard locale categories [[locale.categories]](locale.categories#locale.moneypunct.virtuals)
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#### 28.3.4.7 The monetary category [[category.monetary]](category.monetary#locale.moneypunct.virtuals)
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#### 28.3.4.7.4 Class template moneypunct [[locale.moneypunct]](locale.moneypunct#virtuals)
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#### 28.3.4.7.4.3 Virtual functions [locale.moneypunct.virtuals]
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[ð](#lib:moneypunct,do_decimal_point)
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`charT do_decimal_point() const;
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`
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[1](#1)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4590)
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*Returns*: The radix separator to use
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in case do_frac_digits() is greater than zero[.](#1.sentence-1)[231](#footnote-231 "In common U.S. locales this is '.'.")
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[ð](#lib:moneypunct,do_thousands_sep)
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`charT do_thousands_sep() const;
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`
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[2](#2)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4605)
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*Returns*: The digit group separator to use
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in case do_grouping() specifies a digit grouping pattern[.](#2.sentence-1)[232](#footnote-232 "In common U.S. locales this is ','.")
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[ð](#lib:moneypunct,do_grouping)
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`string do_grouping() const;
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`
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[3](#3)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4620)
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*Returns*: A pattern defined identically as, but not necessarily equal to,
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the result of numpunct<charT>::do_grouping()[.](#3.sentence-1)[233](#footnote-233 "To specify grouping by 3s, the value is "\003" not "3".")
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[ð](#lib:moneypunct,do_curr_symbol)
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`string_type do_curr_symbol() const;
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`
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[4](#4)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4636)
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*Returns*: A string to use as the currency identifier symbol[.](#4.sentence-1)
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[*Note [1](#note-1)*:
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For specializations where the second template parameter is true,
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this is typically four characters long:
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a three-letter code as specified by ISO 4217[[bib]](bibliography#bib:iso4217 "Bibliography") followed by a space[.](#4.sentence-2)
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â *end note*]
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[ð](#lib:moneypunct,do_positive_sign)
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`string_type do_positive_sign() const;
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string_type do_negative_sign() const;
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`
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[5](#5)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4655)
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*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)
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[ð](#lib:moneypunct,do_frac_digits)
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`int do_frac_digits() const;
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`
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[6](#6)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4672)
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*Returns*: The number of digits after the decimal radix separator, if any[.](#6.sentence-1)[235](#footnote-235 "In common U.S. locales, this is 2.")
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[ð](#lib:moneypunct,do_pos_format)
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`pattern do_pos_format() const;
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pattern do_neg_format() const;
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`
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[7](#7)
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[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/text.tex#L4688)
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*Returns*: The specializations required in Table [92](locale.category#tab:locale.spec "Table 92: Required specializations") ([[locale.category]](locale.category "28.3.3.1.2.1 Type locale::category")), namely
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- [(7.1)](#7.1)
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moneypunct<char>,
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- [(7.2)](#7.2)
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moneypunct<wchar_t>,
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- [(7.3)](#7.3)
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moneypunct<char, true>, and
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- [(7.4)](#7.4)
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moneypunct<wchar_t, true>,
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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, "USD ".")
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[231)](#footnote-231)[231)](#footnoteref-231)
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In common U.S. locales this is '.'[.](#footnote-231.sentence-1)
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[232)](#footnote-232)[232)](#footnoteref-232)
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In common U.S. locales this is ','[.](#footnote-232.sentence-1)
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[233)](#footnote-233)[233)](#footnoteref-233)
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To specify grouping by 3s,
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the value is "\003" *not* "3"[.](#footnote-233.sentence-1)
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[234)](#footnote-234)[234)](#footnoteref-234)
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This is usually the empty string[.](#footnote-234.sentence-1)
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[235)](#footnote-235)[235)](#footnoteref-235)
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In common U.S. locales, this is 2[.](#footnote-235.sentence-1)
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[236)](#footnote-236)[236)](#footnoteref-236)
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Note that the international symbol returned by do_curr_symbol() usually contains a space, itself;
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for example, "USD "[.](#footnote-236.sentence-1)
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