std::ratio_divide – cppreference.com

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definiert in Header `<ratio>`

`template< class R1, class R2 > using ratio_divide = /* unspecified */;`

Die Vorlage alias std::ratio_divide bezeichnet das Ergebnis der Division zweier exakten rationalen Fraktionen von den std::ratio Fällen vertreten R1 und R2. Das Ergebnis eine Instanz std::ratio std::ratio<Num, Denom> wo Num == R1::num * R2::den und Denom == R1::den * R2::num .

Original:

The template alias std::ratio_divide denotes the result of dividing two exact rational fractions represented by the std::ratio instances R1 and R2. The result a std::ratio instance std::ratio<Num, Denom> where Num == R1::num * R2::den and Denom == R1::den * R2::num.

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Mitglied Typen


Mitglied Typ Original: Member type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition

`type`	`std::ratio<num, den>`

Mitglied Konstanten


	`constexpr` Wert vom Typ std::intmax_t gleich `sign(Num) * sign(Denom) * abs(Num) / gcd(Num, Denom)` Original: `constexpr` value of type std::intmax_t equal to `sign(Num) * sign(Denom) * abs(Num) / gcd(Num, Denom)` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public static Mitglied konstanten)

	`constexpr` Wert vom Typ std::intmax_t gleich `abs(Denom) / gcd(Num, Denom)` Original: `constexpr` value of type std::intmax_t equal to `abs(Denom) / gcd(Num, Denom)` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (public static Mitglied konstanten)

Beispiel

#include <iostream>
#include <ratio>

int main()
{
    typedef std::ratio<2, 3> two_third;
    typedef std::ratio<1, 6> one_sixth;
    typedef std::ratio_divide<two_third, one_sixth> r;
    std::cout << "2/3 / 1/6 = " << r::num << '/' << r::den << '\n';
}

Output: