Defined in header <cmath> | ||
|---|---|---|
#define HUGE_VALF /*implementation defined*/ | (since C++11) | |
#define HUGE_VAL /*implementation defined*/ | ||
#define HUGE_VALL /*implementation defined*/ | (since C++11) |
The HUGE_VALF, HUGE_VAL and HUGE_VALL macros expand to positive floating point constant expressions which compare equal to the values returned by floating-point functions and operators in case of overflow (see math_errhandling).
| Constant | Explanation |
|---|---|
HUGE_VALF | Expands to positive float expression that indicates overflow |
HUGE_VAL | Expands to positive double expression that indicates overflow, not necessarily representable as a float |
HUGE_VALL | Expands to positive long double expression that indicates overflow, not necessarily representable as a float or double |
On implementations that support floating-point infinities, these macros always expand to the positive infinities of float, double, and long double, respectively.
|
(C++11) | evaluates to positive infinity or the value guaranteed to overflow a float (macro constant) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
http://en.cppreference.com/w/cpp/numeric/math/HUGE_VAL