std::ratio man page

std::ratio< _Num, _Den > — Provides compile-time rational arithmetic.

Synopsis

Public Types

typedef ratio< num, den > type

Static Public Attributes

static constexpr intmax_t den

static constexpr intmax_t num

Detailed Description

template<intmax_t _Num, intmax_t _Den = 1>

struct std::ratio< _Num, _Den >" Provides compile-time rational arithmetic.

This class template represents any finite rational number with a numerator and denominator representable by compile-time constants of type intmax_t. The ratio is simplified when instantiated.

For example:

std::ratio<7,-21>::num == -1;
std::ratio<7,-21>::den == 3;

Definition at line 263 of file ratio.

Author

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Info

Fri Sep 16 2016 libstdc++