Espaços nominais
Variantes
Acções

FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN

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< c‎ | numeric‎ | math

 
 
 
Funções matemáticas comuns
Funções
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Functions
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Operações básicas
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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
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Funções exponenciais
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Exponential functions
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exp
exp2(C99)
expm1(C99)
log
log10
log1p(C99)
log2(C99)
Funções de poder
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Power functions
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sqrt
cbrt(C99)
hypot(C99)
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Funções trigonométricas e hiperbólicas
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Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C99)
acosh(C99)
atanh(C99)
Erro e funções gamma
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Error and gamma functions
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erf(C99)
erfc(C99)
lgamma(C99)
tgamma(C99)
Número inteiro mais próximo de operações de ponto flutuante
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Nearest integer floating point operations
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ceil
floor
round
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trunc(C99)
nearbyint(C99)
rint
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Flutuando funções de manipulação de pontos
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Floating point manipulation functions
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ldexp
scalbn
scalbln
(C99)
(C99)
ilogb(C99)
logb(C99)
Classificação
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Classification
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fpclassify(C99)
isfinite(C99)
isinf(C99)
isnan(C99)
isnormal(C99)
signbit(C99)
Constantes de macros
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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*/
O FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN macros cada um representa uma categoria distinta de números de ponto flutuante. Eles se expandem a uma expressão constante inteira.
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
indica que o valor é normal', ou seja, não uma infinidade, subnormal, não--número um ou zero
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indicates that the value is normal, i.e. not an infinity, subnormal, not-a-number or zero
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FP_SUBNORMAL
indica que o valor é' subnormal
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indicates that the value is subnormal
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FP_ZERO
indica que o valor é zero positivo ou negativo
Original:
indicates that the value is positive or negative zero
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FP_INFINITE
indica que o valor não é representável pelo tipo subjacente (infinito positivo ou negativo)
Original:
indicates that the value is not representable by the underlying type (positive or negative infinity)
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FP_NAN
indica que o valor não-a-se o número (NaN)
Original:
indicates that the value is not-a-number (NaN)
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[editar] Veja também

categoriza o valor determinado ponto flutuante
Original:
categorizes the given floating point value
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(função) [edit]
C++ documentation for FP_categories