| 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) |
| [static]
| returns the positive infinity value of the given floating-point type (public static member function of std::numeric_limits) |
C documentation for INFINITY |
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