| Defined in header <math.h> | ||
|---|---|---|
#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.
References
- C11 standard (ISO/IEC 9899:2011):
- 7.12/4 INFINITY (p: 231-232)
- C99 standard (ISO/IEC 9899:1999):
- 7.12/4 INFINITY (p: 212-213)
See also
| (C99) | checks if the given number is infinite (function) |
| (C99)(C99) | indicates value too big to be representable (infinity) by float, double and long double respectively (macro constant) |
C++ documentation for INFINITY | |
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