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FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN

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Fonctions mathématiques courantes
Fonctions
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Functions
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Opérations de base
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Basic operations
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remainder (C99)
remquo (C99)
fma (C99)
fmax (C99)
fmin (C99)
fdim (C99)
nan
nanf
nanl
(C99)
(C99)
(C99)
Les fonctions exponentielles
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Exponential functions
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exp
exp2 (C99)
expm1 (C99)
log
log10
log1p (C99)
log2 (C99)
Les fonctions de puissance
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Power functions
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sqrt
cbrt (C99)
hypot (C99)
pow
Les fonctions trigonométriques et hyperboliques
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Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh (C99)
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atanh (C99)
Erreur fonctions et gamma
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Error and gamma functions
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erf (C99)
erfc (C99)
lgamma (C99)
tgamma (C99)
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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trunc (C99)
nearbyint (C99)
rint
lrint
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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
(C99)
(C99)
ilogb (C99)
logb (C99)
Classification
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Classification
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fpclassify (C99)
isfinite (C99)
isinf (C99)
isnan (C99)
isnormal (C99)
signbit (C99)
Macro constantes
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Macro constants
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FP_NORMAL
FP_SUBNORMAL
FP_ZERO
FP_INFINITE
FP_NAN
(C99)
(C99)
(C99)
(C99)
(C99)
 
Defined in header <math.h>
#define FP_NORMAL    /*implementation defined*/
#define FP_SUBNORMAL /*implementation defined*/
#define FP_ZERO      /*implementation defined*/
#define FP_INFINITE  /*implementation defined*/
#define FP_NAN       /*implementation defined*/
Le FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN macros représentent chacun une catégorie distincte de nombres à virgule flottante. Ils ont tous s'étendre à une expression constante entière .
Original:
The FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN macros each represent a distinct category of floating-point numbers. They all expand to an integer constant expression.
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Constante
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Constant
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Explanation
FP_NORMAL
indique que la valeur est normale', c'est à dire pas une infinité, inférieure à la normale, pas-a-number ou nulle
Original:
indicates that the value is normal, i.e. not an infinity, subnormal, not-a-number or zero
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FP_SUBNORMAL
indique que la valeur est inférieure à la normale'
Original:
indicates that the value is subnormal
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FP_ZERO
indique que la valeur est zéro positif ou négatif
Original:
indicates that the value is positive or negative zero
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FP_INFINITE
indique que la valeur n'est pas représentable par le type sous-jacent (infini positif ou négatif)
Original:
indicates that the value is not representable by the underlying type (positive or negative infinity)
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FP_NAN
indique que la valeur est non-nombre-(NaN)
Original:
indicates that the value is not-a-number (NaN)
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[modifier] Voir aussi

catégorise la valeur du point donné flottante
Original:
categorizes the given floating point value
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(fonction) [edit]
C++ documentation for FP_categories