Compile-time rational arithmetic
From Cppreference
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Compile time rational arithmetic | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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[edit] ratio
Defined in header <ratio>
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template< intmax_t Num, intmax_t Denom = 1 >
class ratio; |
(C++11 feature) | |
The class template ratio provides compile-time rational arithmetic support.
This section is incomplete |
Several convenience SI typedefs are already provided:
Defined in header <ratio>
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typedef std::ratio<1, 1000000000000000000000000> yocto; //see below
typedef std::ratio<1, 1000000000000000000000> zepto; //see below |
(C++11 feature) | |
The typedefs yocto, zepto, zetta, yotta are provided only if intmax_t is sufficient to represent the values used to instantiate the templates.
[edit] ratio arithmetic
Several class templates, that perform arithmetic operations on ratio objects at compile-time are provided.
Defined in header
<ratio> | |||
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adds two ratio objects at compile-time (class template) |
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subtracts two ratio objects at compile-time (class template) |
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multiplies two ratio objects at compile-time (class template) |
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divides two ratio objects at compile-time (class template) |
[edit] ratio comparison
Several class templates, that perform comparison operations on ratio objects at compile-time are provided.
Defined in header
<ratio> | |||
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compares two ratio objects for equality at compile-time (class template) |
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compares two ratio objects for inequality at compile-time (class template) |
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compares two ratio objects for less than at compile-time (class template) |
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compares two ratio objects for less than or equal to at compile-time (class template) |
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compares two ratio objects for greater than at compile-time (class template) |
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compares two ratio objects for greater than or equal to at compile-time (class template) |