# HUGE_VALF, HUGE_VAL, HUGE_VALL

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< cpp‎ | numeric‎ | math

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.

### See also

INFINITY (C++11) | evaluates to positive infinity or the value guaranteed to overflow a float (macro constant)
C documentation for HUGE_VAL

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