Movatterモバイル変換


[0]ホーム

URL:


cppreference.com
Namespaces
Variants
    Actions

      Standard library header <ratio> (C++11)

      From cppreference.com
      <cpp‎ |header
       
       
      Standard library headers
       

      This header is part of thecompile-time rational arithmetic library.

      Contents

      Classes

      (C++11)
      represents exact rational fraction
      (class template)[edit]
      Arithmetic
      (C++11)
      adds tworatio objects at compile-time
      (alias template)[edit]
      subtracts tworatio objects at compile-time
      (alias template)[edit]
      multiplies tworatio objects at compile-time
      (alias template)[edit]
      divides tworatio objects at compile-time
      (alias template)[edit]
      Comparison
      compares tworatio objects for equality at compile-time
      (class template)[edit]
      compares tworatio objects for inequality at compile-time
      (class template)[edit]
      (C++11)
      compares tworatio objects forless than at compile-time
      (class template)[edit]
      compares tworatio objects forless than or equal to at compile-time
      (class template)[edit]
      compares tworatio objects forgreater than at compile-time
      (class template)[edit]
      compares tworatio objects forgreater than or equal to at compile-time
      (class template)[edit]
      Type Aliases
      quecto(C++26)std::ratio<1,1000000000000000000000000000000>, ifstd::intmax_t can represent the denominator
      ronto(C++26)std::ratio<1,1000000000000000000000000000>, ifstd::intmax_t can represent the denominator
      yoctostd::ratio<1,1000000000000000000000000>, ifstd::intmax_t can represent the denominator
      zeptostd::ratio<1,1000000000000000000000>, ifstd::intmax_t can represent the denominator
      attostd::ratio<1,1000000000000000000>
      femtostd::ratio<1,1000000000000000>
      picostd::ratio<1,1000000000000>
      nanostd::ratio<1,1000000000>
      microstd::ratio<1,1000000>
      millistd::ratio<1,1000>
      centistd::ratio<1,100>
      decistd::ratio<1,10>
      decastd::ratio<10,1>
      hectostd::ratio<100,1>
      kilostd::ratio<1000,1>
      megastd::ratio<1000000,1>
      gigastd::ratio<1000000000,1>
      terastd::ratio<1000000000000,1>
      petastd::ratio<1000000000000000,1>
      exastd::ratio<1000000000000000000,1>
      zettastd::ratio<1000000000000000000000,1>, ifstd::intmax_t can represent the numerator
      yottastd::ratio<1000000000000000000000000,1>, ifstd::intmax_t can represent the numerator
      ronna(C++26)std::ratio<1000000000000000000000000000,1>, ifstd::intmax_t can represent the numerator
      quetta(C++26)std::ratio<1000000000000000000000000000000,1>, ifstd::intmax_t can represent the numerator

      [edit]Synopsis

      namespace std{// class template ratiotemplate<intmax_t N, intmax_t D=1>class ratio{public:typedef ratio<num, den> type;staticconstexpr intmax_t num;staticconstexpr intmax_t den;}; // ratio arithmetictemplate<class R1,class   R2>using   ratio_add=/*ratio*/;template<class R1,class   R2>using   ratio_subtract=/*ratio*/;template<class R1,class   R2>using   ratio_multiply=/*ratio*/;template<class R1,class   R2>using   ratio_divide=/*ratio*/; // ratio comparisontemplate<class R1,class R2>struct ratio_equal;template<class R1,class R2>struct ratio_not_equal;template<class R1,class R2>struct ratio_less;template<class R1,class R2>struct ratio_less_equal;template<class R1,class R2>struct ratio_greater;template<class R1,class R2>struct ratio_greater_equal;   // convenience SI typedefstypedef ratio<1,1000000000000000000000000000000> quecto;typedef ratio<1,1000000000000000000000000000> ronto;typedef ratio<1,1000000000000000000000000> yocto;typedef ratio<1,1000000000000000000000> zepto;typedef ratio<1,1000000000000000000> atto;typedef ratio<1,1000000000000000> femto;typedef ratio<1,1000000000000> pico;typedef ratio<1,1000000000> nano;typedef ratio<1,1000000> micro;typedef ratio<1,1000> milli;typedef ratio<1,100> centi;typedef ratio<1,10> deci;typedef ratio<10,1> deca;typedef ratio<100,1> hecto;typedef ratio<1000,1> kilo;typedef ratio<1000000,1> mega;typedef ratio<1000000000,1> giga;typedef ratio<1000000000000,1> tera;typedef ratio<1000000000000000,1> peta;typedef ratio<1000000000000000000,1> exa;typedef ratio<1000000000000000000000,1> zetta;typedef ratio<1000000000000000000000000,1> yotta;typedef ratio<1000000000000000000000000000,1> ronna;typedef ratio<1000000000000000000000000000000,1> quetta;}
      Retrieved from "https://en.cppreference.com/mwiki/index.php?title=cpp/header/ratio&oldid=180037"

      [8]ページ先頭

      ©2009-2025 Movatter.jp