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std::ratio(3) Library Functions Manual std::ratio(3)

NAME

std::ratio -

Provides compile-time rational arithmetic.

SYNOPSIS

Public Member Functions


static_assert (_Num >=-__INTMAX_MAX__ &&_Den >=-__INTMAX_MAX__,'out of range')
static_assert (_Den!=0,'denominator cannot be zero')

Static Public Attributes


static const intmax_t den
static const 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 151 of file ratio.

Author

Generated automatically by Doxygen for libstdc++ from the source code.

19 Jun 2018 libstdc++