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std::isinf

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Defined in header <cmath>
bool isinf( float arg );
(since C++11)
bool isinf( double arg );
(since C++11)
bool isinf( long double arg );
(since C++11)

Determines if the given floating point number arg is positive or negative infinity.

[edit] Parameters

arg - floating point value

[edit] Return value

true if arg is infinite, false otherwise

[edit] See also

categorizes the given floating point value
(function) [edit]
(C++11)
checks if the given number has finite value
(function) [edit]
(C++11)
checks if the given number is NaN
(function) [edit]
(C++11)
checks if the given number is normal
(function) [edit]