Espaços nominais
Variantes
Acções

FP_NORMAL, FP_SUBNORMAL, FP_ZERO, FP_INFINITE, FP_NAN

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C
 
Numéricos
 
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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Funções exponenciais
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Exponential functions
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Funções de poder
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Power functions
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Funções trigonométricas e hiperbólicas
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Trigonometric and hyperbolic functions
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Erro e funções gamma
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Error and gamma functions
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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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Flutuando funções de manipulação de pontos
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Floating point manipulation functions
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Classificação
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Classification
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Constantes de macros
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Macro constants
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FP_NORMALFP_SUBNORMALFP_ZEROFP_INFINITEFP_NAN
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Definido no cabeçalho <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
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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

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categoriza o valor determinado ponto flutuante
Original:
categorizes the given floating point value
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(função) [edit]
C++ documentation for FP_categories
Obtida de "https://pt.cppreference.com/mwiki/index.php?title=c/numeric/math/FP_categories&oldid=19674"