Defined in header <cmath> | ||
---|---|---|
#define INFINITY /*implementation defined*/ | (since C++11) |
If the implementation supports floating-point infinities, the macro INFINITY
expands to constant expression of type float
which evaluates to positive or unsigned infinity.
If the implementation does not support floating-point infinities, the macro INFINITY
expands to a positive value that is guaranteed to overflow a float
at compile time, and the use of this macro generates a compiler warning.
(C++11) | checks if the given number is infinite (function) |
(C++11)(C++11) | indicates the overflow value for float , double and long double respectively (macro constant) |
[static] | identifies floating-point types that can represent the special value "positive infinity" (public static member constant of std::numeric_limits<T> ) |
[static] | returns the positive infinity value of the given floating-point type (public static member function of std::numeric_limits<T> ) |
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