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INFINITY

From cppreference.com
< c‎ | numeric‎ | math
 
 
 
Common mathematical functions
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Macro constants
 
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.

[edit] 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)

[edit] See also

(C99)
checks if the given number is infinite
(function) [edit]
indicates value too big to be representable (infinity) by float, double and long double respectively
(macro constant) [edit]
C++ documentation for INFINITY