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std::floor

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< cpp‎ | numeric‎ | math

 
 
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Tempo de compilação aritmética racional (C++11)
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Original:
Generic numeric operations
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iota(C++11)
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adjacent_difference
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Funções
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Functions
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Basic operations
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remainder(C++11)
remquo(C++11)
fma(C++11)
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fdim(C++11)
nan
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(C++11)
(C++11)
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Número inteiro mais próximo de operações de ponto flutuante
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Nearest integer floating point operations
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ceil
floor
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Defined in header <cmath>
float       floor( float arg );
double      floor( double arg );
long double floor( long double arg );
double      floor( Integral arg );
(a partir do C++ 11)
Calcula inteiro mais próximo não superior a arg.
Original:
Computes nearest integer not greater than arg.
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Índice

[editar] Parâmetros

arg -
flutuando valor de ponto
Original:
floating point value
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[editar] Valor de retorno

Mais próximo número inteiro não superior a arg
Original:
Nearest integer not greater than arg
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[[Image:
Valor de retorno
Original:
{{{2}}}
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|200x200px]]
Argument

[editar] Notas

O valor inteiro pode ser sempre representado pelo tipo de dado ponto flutuante.
Original:
The integer value can be always represented by the given floating point type.
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[editar] Exemplo

#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';
}

Output:

12.000000
12.000000
12.000000
12.000000
13.000000

[editar] Veja também

número inteiro mais próximo, pelo menos, o valor dado
Original:
nearest integer not less than the given value
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(função) [edit]
(C++11)
número inteiro mais próximo não maior em magnitude do que o valor dado
Original:
nearest integer not greater in magnitude than the given value
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(função) [edit]
(C++11)
(C++11)
(C++11)
número inteiro mais próximo de arredondamento, de zero em casos meio
Original:
nearest integer, rounding away from zero in halfway cases
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(função) [edit]