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std::div, std::ldiv, std::lldiv

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
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Generic numeric operations
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iota (C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Fonctions mathématiques courantes
{{{1}}}
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{{{2}}}
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Fonctions
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Functions
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Opérations de base
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Basic operations
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abs(int)
labs
llabs
imaxabs



(C++11)
abs(float)
fabs
div
ldiv
lldiv
imaxdiv



(C++11)
fmod
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
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Exponential functions
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exp
exp2 (C++11)
expm1 (C++11)
log
log10
log1p (C++11)
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Les fonctions de puissance
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Power functions
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sqrt
cbrt (C++11)
hypot (C++11)
pow
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sinh
cosh
tanh
asinh (C++11)
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atanh (C++11)
{{{1}}}
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{{{2}}}
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Erreur fonctions et gamma
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Error and gamma functions
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erf (C++11)
erfc (C++11)
lgamma (C++11)
tgamma (C++11)
Entier le plus proche opérations en virgule flottante
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Nearest integer floating point operations
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ceil
floor
round
lround
llround
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(C++11)
(C++11)
trunc (C++11)
nearbyint (C++11)
rint
lrint
llrint
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Flottant fonctions de manipulation de points
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Floating point manipulation functions
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ldexp
scalbn
scalbln
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logb (C++11)
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copysign (C++11)
Classification / Comparaison
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Classification/Comparison
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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
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Macro constants
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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 <cstdlib>
std::div_t     div( int x, int y );
std::ldiv_t    div( long x, long y );
std::lldiv_t   div( long long x, long long y );
(depuis C++11)
std::ldiv_t   ldiv( long x, long y );
std::lldiv_t lldiv( long long x, long long y );
(depuis C++11)
Defined in header <cinttypes>
std::imaxdiv_t div( std::intmax_t x, std::intmax_t y );
(depuis C++11)
std::imaxdiv_t imaxdiv( std::intmax_t x, std::intmax_t y );
(depuis C++11)
Calcule le quotient (le résultat de l'expression x/y) et le reste (le résultat de l'expression x%y) simultanément. (depuis C++11)
Original:
Computes the quotient (the result of the expression x/y) and remainder (the result of the expression x%y) simultaneously. (depuis C++11)
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Calcule le quotient et le reste en même temps. Le quotient est le quotient algébrique avec une partie fractionnaire mis au rebut (tronquée vers zéro). Le reste est telle que quot * y + rem == x. (avant C++11)
Original:
Computes quotient and remainder simultaneously. The quotient is the algebraic quotient with any fractional part discarded (truncated towards zero). The remainder is such that quot * y + rem == x. (avant C++11)
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Sommaire

[modifier] Notes

Jusqu'à ce que C + +11, la direction d'approximation du quotient et le signe du reste dans le haut-opérateurs de division et le reste a été définie par l'implémentation si l'une des opérandes est négatif, mais il était bien définie dans std::div .
Original:
Until C++11, the rounding direction of the quotient and the sign of the remainder in the built-in division and remainder operators was implementation-defined if either of the operands was negative, but it was well-defined in std::div.
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[modifier] Paramètres

x, y -
des valeurs entières
Original:
integer values
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[modifier] Retourne la valeur

Structure de type div_t, ldiv_t, ldiv_t, imaxdiv_t défini comme suit:
Original:
Structure of type div_t, ldiv_t, ldiv_t, imaxdiv_t defined as:
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struct div_t {
    int quot;   // The quotient
    int rem;    // The remainder
};
 
struct ldiv_t {
    long quot;   // The quotient
    long rem;    // The remainder
};
 
struct lldiv_t {
    long long quot;   // The quotient
    long long rem;    // The remainder
};
 
struct imaxdiv_t {
    std::intmax_t quot;   // The quotient
    std::intmax_t rem;    // The remainder
};

[modifier] Voir aussi

reste de l'opération de division à virgule flottante
Original:
remainder of the floating point division operation
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(fonction) [edit]