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      std::floor

      De cppreference.com
      < cpp‎ | numeric‎ | math

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      C++
       
      Bibliothèque Numerics
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      Nearest integer floating point operations
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      </div>
       
      </div>
      Déclaré dans l'en-tête <cmath>
      float       floor(float arg );
      double      floor(double arg );
      longdouble floor(longdouble 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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      Sommaire

      [modifier]Paramètres

      arg -
      valeur du point flottant
      Original:
      floating point value
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      [modifier]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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      |200x200px]]
      Argument

      [modifier]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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      [modifier]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 : 

      12.000000 12.000000 12.000000 12.000000 13.000000

      [modifier]Voir aussi

      entier le plus proche n'est pas inférieure à la valeur donnée
      Original:
      nearest integer not less than the given value
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      (fonction)[edit]
      (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
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      (fonction)[edit]
      (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
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      (fonction)[edit]
      Récupérée de « https://fr.cppreference.com/mwiki/index.php?title=cpp/numeric/math/floor&oldid=48838 »
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