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Showing content from https://cplusplus.com/reference/cfenv/FE_ALL_EXCEPT/ below:

macro

<cfenv>

FE_ALL_EXCEPT

All exceptions

This macro expands to a value of type int that combines the value of all the possible floating-point exceptions defined in <cfenv> (with bitwise OR).

If no floating-point exceptions are supported by the implementation, this macro is defined as 0 (zero).

It can be used on functions that expect a bitmask of possible floating point exceptions as one of its arguments: feclearexcept, fegetexceptflag, feraiseexcept, fesetexceptflag, or fetestexcept.

It is a combination of all of the possible floating-point exception macro values supported by the implementation, which may include any of following (plus any other additional implementation-specific exception):

It is a combination of all of the possible floating-point exception macro values supported by the implementation, which includes all of the following (plus any other additional implementation-specific exception):


macro value description FE_DIVBYZERO Pole error: division by zero, or some other asymptotically infinite result (from finite arguments). FE_INEXACT Inexact: the result is not exact. FE_INVALID Domain error: At least one of the arguments is a value for which the function is not defined. FE_OVERFLOW Overflow range error: The result is too large in magnitude to be represented as a value of the return type. FE_UNDERFLOW Underflow range error: The result is too small in magnitude to be represented as a value of the return type.
See also
FE_DIVBYZERO
Pole error exception (macro)
FE_INEXACT
Inexact result exception (macro)
FE_INVALID
Invalid argument exception (macro)
FE_OVERFLOW
Overflow range error exception (macro)
FE_UNDERFLOW
Underflow range error exception (macro)
feraiseexcept
Raise floating-point exception (function)

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