Espaces de noms
Variantes
Affichages
Actions

std::ceil

De cppreference.com
< cpp‎ | numeric‎ | math

 
 
Bibliothèque Numerics
Fonctions mathématiques courantes
Virgule flottante environnement
Nombres complexes
Tableaux numériques
La génération de nombres pseudo-aléatoires
Moment de la compilation arithmétique rationnelle (C++11)
Génériques des opérations numériques
Original:
Generic numeric operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
iota (C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Fonctions mathématiques courantes
{{{1}}}
Original:
{{{2}}}
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Fonctions
Original:
Functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Opérations de base
Original:
Basic operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
remainder (C++11)
remquo (C++11)
fma (C++11)
fmax (C++11)
fmin (C++11)
fdim (C++11)
nan
nanf
nanl
(C++11)
(C++11)
(C++11)
Les fonctions exponentielles
Original:
Exponential functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
exp
exp2 (C++11)
expm1 (C++11)
log
log10
log1p (C++11)
log2 (C++11)
Les fonctions de puissance
Original:
Power functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sqrt
cbrt (C++11)
hypot (C++11)
pow
Les fonctions trigonométriques et hyperboliques
Original:
Trigonometric and hyperbolic functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
sinh
cosh
tanh
asinh (C++11)
acosh (C++11)
atanh (C++11)
{{{1}}}
Original:
{{{2}}}
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Erreur fonctions et gamma
Original:
Error and gamma functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
erf (C++11)
erfc (C++11)
lgamma (C++11)
tgamma (C++11)
Entier le plus proche opérations en virgule flottante
Original:
Nearest integer floating point operations
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ceil
floor
round
lround
llround
(C++11)
(C++11)
(C++11)
trunc (C++11)
nearbyint (C++11)
rint
lrint
llrint
(C++11)
(C++11)
(C++11)
Flottant fonctions de manipulation de points
Original:
Floating point manipulation functions
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
ldexp
scalbn
scalbln
(C++11)
(C++11)
ilogb (C++11)
logb (C++11)
frexp
modf
nextafter
nexttoward
(C++11)
(C++11)
copysign (C++11)
Classification / Comparaison
Original:
Classification/Comparison
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
fpclassify (C++11)
isfinite (C++11)
isinf (C++11)
isnan (C++11)
isnormal (C++11)
signbit (C++11)
isgreater (C++11)
isgreaterequal (C++11)
isless (C++11)
islessequal (C++11)
islessgreater (C++11)
isunordered (C++11)
Macro constantes
Original:
Macro constants
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C++11)
(C++11)
(C++11)
(C++11)
(C++11)
</div>
 
</div>
Defined in header <cmath>
float       ceil( float arg );
double      ceil( double arg );
long double ceil( long double arg );
double      ceil( Integral arg );
(depuis C++11)
Entier le plus proche calcule pas moins de arg .
Original:
Computes nearest integer not less than arg.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

Sommaire

[modifier] Paramètres

arg -
valeur du point flottant
Original:
floating point value
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier] Retourne la valeur

Le plus proche entier supérieur ou égal arg
Original:
Nearest integer not less than arg
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
[[Image:
Retourne la valeur
Original:
{{{2}}}
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
|200x200px]]
Argument

[modifier] Notes

Si l'argument est infini (positif ou négatif) ou zéro (positif ou négatif), la valeur de retour est le même que l'argument .
Original:
If the argument is infinity (positive or negative) or zero (positive or negative), the return value is the same as the argument.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Représentable le plus élevé valeurs à virgule flottante sont des nombres entiers exacts dans tous les standards des formats à virgule flottante, de sorte que cette fonction ne jamais débordements .
Original:
The largest representable floating-point values are exact integers in all standard floating-point formats, so this function never overflows.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
Cette fonction peut, mais n'est pas tenu de, lever FE_INEXACT exceptions de virgule flottante pour les arguments non entiers .
Original:
This function may, but is not required to, raise FE_INEXACT floating-point exceptions for non-integer arguments.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

[modifier] Exemple

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

Résultat :

12.000000
13.000000
13.000000
13.000000
13.000000

[modifier] Voir aussi

entier le plus proche n'est pas supérieure à la valeur donnée
Original:
nearest integer not greater 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]
(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]
(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]
(C++11)
(C++11)
(C++11)
entier le plus proche en utilisant le mode d'arrondi courant à l'exception
si le résultat est différent
Original:
nearest integer using current rounding mode with
exception if the result differs
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(fonction) [edit]
(C++11)
entier le plus proche en utilisant le mode d'arrondi courant
Original:
nearest integer using current rounding mode
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.

(fonction) [edit]