INFINITY
From cppreference.com
| Defined in header <math.h>
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| #define INFINITY /*implementation defined*/ |
(since C99) | |
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.
The style used to print an infinity is implementation defined.