std::ratio_greater_equal
Defined in header <ratio> | | |
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template< class R1, class R2 > struct ratio_greater_equal : std::integral_constant; | | |
如果比率R1大于或等于该比率。R2，提供成员常量。value平等true.否则，value是false...
辅助变量模板
template< class R1, class R2 > inline constexpr bool ratio_greater_equal_v = ratio_greater_equal<R1, R2>::value; | | (since C++17) |
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继承自STD：积分[医]常量
成员常数
value static | true if R1::num * R2::den >= R2::num * R1::den, or equivalent expression that avoids overflow , false otherwise (public static member constant) |
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成员函数
operator bool | converts the object to bool, returns value (public member function) |
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operator() (C++14) | returns value (public member function) |
成员类型
Type | Definition |
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value_type | bool |
type | std::integral_constant<bool, value> |
例
另见
二次
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