std::ratio_equal
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| definiert in Header <ratio>
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| template< class R1, class R2 > struct ratio_equal : std::integral_constant; |
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Wenn die Verhältnisse R1 und R2 gleich sind, bietet das Mitglied konstanten
value gleich true. Ansonsten ist value false .Original:
If the ratios R1 and R2 are equal, provides the member constant
value equal true. Otherwise, value is false.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Inhaltsverzeichnis |
Inherited from std::integral_constant
Member constants
| value [statisch] |
true wenn R1::num == R2::num && R1::den == R2::den , false anders Original: true if R1::num == R2::num && R1::den == R2::den , false otherwise 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) |
Member functions
| operator bool |
wandelt das Objekt bool, gibt value Original: converts the object to bool, returns value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (öffentliche Elementfunktion) |
Member types
| Type
Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
Definition |
value_type
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bool
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type
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std::integral_constant<bool, value> |
[Bearbeiten] Mögliche Implementierung
template< class R1, class R2 > struct ratio_equal : public std::integral_constant < bool, R1::num == R2::num && R1::den == R2::den > {}; |
[Bearbeiten] Beispiel
#include <iostream> #include <ratio> int main() { if(std::ratio_equal<std::ratio<2,3>, std::ratio<4,6>>::value) { std::cout << "2/3 == 4/6\n"; } else { std::cout << "2/3 != 4/6\n"; } }
Output:
2/3 == 4/6
