INFINITY - cppreference.com (original) (raw)

| | | | | --------------------------------------------- | | ------------- | | #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.

[edit] See also

| | checks if the given number is infinite (function) [edit] | | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | | indicates the overflow value for float, double and long double respectively (macro constant) [edit] | | | identifies floating-point types that can represent the special value "positive infinity" (public static member constant of std::numeric_limits) [edit] | | | returns the positive infinity value of the given floating-point type (public static member function of std::numeric_limits) [edit] | | |