std::money_base
STD：钱[医]底座
| Defined in header | | |
|---|---|---|
| class money_base; | | |
全班std::money_base提供继承和使用的常量。std::moneypunct，，，std::money_get和std::money_put面。
成员类型
| Member type | Definition |
|---|---|
| enum part { none, space, symbol, sign, value }; | unscoped enumeration type |
| struct pattern { char field4; }; | the monetary format type |
| Enumeration constant | Definition |
|---|---|
| none | whitespace is permitted but not required except in the last position, where whitespace is not permitted |
| space | one or more whitespace characters are required |
| symbol | the sequence of characters returned by moneypunct::curr_symbol is required |
| sign | the first of the characters returned by moneypunct::positive_sign or moneypunct::negative_sign is required |
| value | the absolute numeric monetary value is required |
注记
货币格式是由四个人组成的数组。charS可转换为std::money_base::part.在这个序列中，每一个symbol，，，sign，和value只出现一次space或none出现在其余位置。价值none，如果是存在的，则不是第一位的；space如果存在，既不是第一，也不是最后。
的标准专门化返回的默认格式。std::moneypunct是{symbol, sign, none, value}
另见
| moneypunct | defines monetary formatting parameters used by std::money_get and std::money_put (class template) |
|---|---|
| money_get | parses and constructs a monetary value from an input character sequence (class template) |
| money_put | formats a monetary value for output as a character sequence (class template) |
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