std_ratio.3cxx

Langue: en

Version: 353299 (ubuntu - 24/10/10)

Section: 3 (Bibliothèques de fonctions)

Sommaire

NAME

std::ratio -

Provides compile-time rational arithmetic.

SYNOPSIS


Public Member Functions


static_assert (_Den!=0,'denominator cannot be zero')

static_assert (_Num >=-__INTMAX_MAX__ &&_Den >=-__INTMAX_MAX__,'out of range')

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

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