std::floor — cppreference.com

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Déclaré dans l'en-tête `<cmath>`
`float floor( float arg );`
`double floor( double arg );`
`long double floor( long double arg );`
`double floor( Integral arg );`		(depuis C++11)

Calcule entier le plus proche ne dépassant pas arg .

Original:

Computes nearest integer not greater than arg.

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Paramètres

arg

valeur du point flottant

Original:

floating point value

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Retourne la valeur

Entier le plus proche ne dépassant pas arg

Original:

Nearest integer not greater than arg

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[[Image:

Retourne la valeur

Original:

{{{2}}}

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Argument

Notes

La valeur entière peut toujours être représentée par le type virgule flottante donné .

Original:

The integer value can be always represented by the given floating point type.

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Exemple

#include <cmath>
#include <iostream>
 
int main()
{
    std::cout << std::fixed;
    std::cout << std::floor(12.0) << '\n';
    std::cout << std::floor(12.1) << '\n';
    std::cout << std::floor(12.5) << '\n';
    std::cout << std::floor(12.9) << '\n';
    std::cout << std::floor(13.0) << '\n';
}

Résultat :

Voir aussi


ceil	entier le plus proche n'est pas inférieure à la valeur donnée Original: nearest integer not less than the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]

trunc (C++11)	entier le plus proche n'est pas supérieure en grandeur à la valeur donnée Original: nearest integer not greater in magnitude than the given value The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]

round lround llround (C++11) (C++11) (C++11)	entier le plus proche, arrondi en s'éloignant de zéro dans les cas de transition Original: nearest integer, rounding away from zero in halfway cases The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (fonction) [edit]

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