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std::isnan

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< cpp‎ | numeric‎ | math

 
 
Numéricos biblioteca
Funciones matemáticas comunes
Floating-point medio ambiente
Los números complejos
Matrices numéricas
Pseudo-aleatoria de generación de números
En tiempo de compilación aritmética racional (C++11)
Genéricos operaciones numéricas
Original:
Generic numeric operations
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iota(C++11)
accumulate
inner_product
adjacent_difference
partial_sum
 
Funciones matemáticas comunes
Funciones
Original:
Functions
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Operaciones básicas
Original:
Basic operations
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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)
Funciones exponenciales
Original:
Exponential functions
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exp
exp2(C++11)
expm1(C++11)
log
log10
log1p(C++11)
log2(C++11)
Funciones de energía
Original:
Power functions
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sqrt
cbrt(C++11)
hypot(C++11)
pow
Funciones trigonométricas e hiperbólicas
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Trigonometric and hyperbolic functions
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sinh
cosh
tanh
asinh(C++11)
acosh(C++11)
atanh(C++11)
Error gamma y funciones
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Error and gamma functions
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erf(C++11)
erfc(C++11)
lgamma(C++11)
tgamma(C++11)
Más cerca de las operaciones con enteros en coma flotante
Original:
Nearest integer floating point operations
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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)
Funciones de punto flotante de manipulación
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Floating point manipulation functions
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ldexp
scalbn
scalbln
(C++11)
(C++11)
ilogb(C++11)
logb(C++11)
frexp
modf
nextafter
nexttoward
(C++11)
(C++11)
copysign(C++11)
Clasificación / Comparación
Original:
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)
Constantes Macro
Original:
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)
 
Defined in header <cmath>
bool isnan( float arg );
(desde C++11)
bool isnan( double arg );
(desde C++11)
bool isnan( long double arg );
(desde C++11)
Determina si el dado arg número de punto flotante no-un número-es (NaN) .
Original:
Determines if the given floating point number arg is not-a-number (NaN).
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[editar] Parámetros

arg -
flotando valor en puntos
Original:
floating point value
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[editar] Valor de retorno

true si arg es NaN, false lo contrario
Original:
true if arg is NaN, false otherwise
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[editar] Ver también

clasifica el valor dado en coma flotante
Original:
categorizes the given floating point value
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(función) [edit]
(C++11)
Comprueba si el número dado tiene un valor finito
Original:
checks if the given number has finite value
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(función) [edit]
(C++11)
comprueba si el número dado es infinito
Original:
checks if the given number is infinite
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(función) [edit]
(C++11)
comprueba si el número dado es normal
Original:
checks if the given number is normal
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(función) [edit]
Comprueba si dos valores de punto flotante están desordenados
Original:
checks if two floating-point values are unordered
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(función) [edit]