std::money_get

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C++
 
本地化庫
語言環境方面
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Locales and facets
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locale
字元分類
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Character classification
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轉換
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Conversions
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wstring_convert（C++11）
wbuffer_convert（C++11）
小面類的基類
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Facet category base classes
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小面類
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Facet categories
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特定於語言環境的方面
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Locale-specific facets
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代碼轉換方面
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Code conversion facets
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codecvt_utf8（C++11）
codecvt_utf16（C++11）
codecvt_utf8_utf16（C++11）
codecvt_mode（C++11）
C語言環境
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C locale
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std::money_get
成員函數
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Member functions
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money_get::money_get
money_get::~money_get
money_get::get
money_get::do_get
 
Defined in header <locale>
template<

    class CharT,
    class InputIt = std::istreambuf_iterator<CharT>

> class money_get;
類模板std::money_get封裝的字元流的解析貨幣值的規則。標準I / O的操縱器std::get_money使用std::money_get方面的I / O流的語言環境.
Original:
Class template std::money_get encapsulates the rules for parsing monetary values from character streams. The standard I/O manipulator std::get_money uses the std::money_get facet of the I/O stream's locale.
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cpp/locale/locale/facetstd-money get-inheritance.svg
關於這幅圖像

Inheritance diagram

目錄

[编辑] 類型要求

-
InputIt must meet the requirements of InputIterator.

[编辑] 專業化

兩個專業，兩個部分專業所提供的標準庫和所有語言環境中創建的對象在C + +程序實現
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Two specializations and two partial specializations are provided by the standard library and are implemented by all locale objects created in a C++ program:
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Defined in header <locale>
std::money_get<char>
解析窄的貨幣值的字元串表示形式
Original:
parses narrow string representations of monetary values
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std::money_get<wchar_t>
解析寬貨幣值的字元串表示形式
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parses wide string representations of monetary values
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std::money_get<char, InputIt>
使用自定義輸入迭代器解析窄的貨幣值的字元串表示形式
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parses narrow string representations of monetary values using custom input iterator
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std::money_get<wchar_t, InputIt>
使用自定義輸入迭代器解析寬貨幣值的字元串表示形式
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parses wide string representations of monetary values using custom input iterator
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[编辑] 會員類型

會員類型
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Member type
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 Definition
char_type CharT
string_type std::basic_string<CharT>
iter_type InputIt

[编辑] 成員函數
構造一個新money_get方面
Original:
constructs a new money_get facet
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（公共成員函數）
解構一個money_get方面
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destructs a money_get facet
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（受保護的成員函數）
調用do_get
Original:
invokes do_get
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（公共成員函數）

[编辑] 受保護的成員函數

[虛擬的] </ SPAN></div></div>
從輸入流解析的貨幣價值
Original:
parses a monetary value from an input stream
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（虛擬保護成員函數）

[编辑] 會員對象

static std::locale::id id
「ID」的語言環境
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id of the locale
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（公共成員對象）

[编辑] 為例

#include <iostream>
#include <sstream>
#include <locale>
#include <iomanip>
#include <iterator>
int main()
{
    std::string str = "$1.11 $2.22 $3.33";
    std::cout << std::fixed << std::setprecision(2);
 
    std::cout << '"' << str << "\" parsed with the I/O manipulator: ";
    std::istringstream s1(str);
    s1.imbue(std::locale("en_US.UTF-8"));
    long double val;
    while(s1 >> std::get_money(val))
        std::cout << val/100 << ' ';
    std::cout << '\n';
 
    str = "USD  1,234.56";
    std::cout << '"' << str << "\" parsed with the facet directly: ";
    std::istringstream s2(str);
    s2.imbue(std::locale("en_US.UTF-8"));
    auto& f = std::use_facet<std::money_get<char>>(s2.getloc());
    std::ios_base::iostate err;
    std::istreambuf_iterator<char> beg(s2), end;
    f.get(beg, end, true, s2, err, val);
    std::cout << val/100 << '\n';
}

Output: 

"$1.11 $2.22 $3.33" parsed with the I/O manipulator: 1.11 2.22 3.33
"USD  1,234.56" parsed with the facet directly: 1234.56

[编辑] 另請參閱
定義貨幣格式std::money_get和std::money_put使用的參數
Original:
defines monetary formatting parameters used by std::money_get and std::money_put
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（類模板） [edit]
輸出一個字元序列格式的貨幣價值
Original:
formats a monetary value for output as a character sequence
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（類模板） [edit]
（C++11）
解析貨幣值
Original:
parses a monetary value
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（函數模板）
来自“http://zh.cppreference.com/mwiki/index.php?title=cpp/locale/money_get&oldid=28041”