int fegetexceptflag (fexcept_t* flagp, int excepts);
Get floating-point exception flags
Attempts to store a representation of the floating-point exceptions specified by excepts into the fexcept_t object pointed by flagp.
- Pointer to a fexcept_t object where the representation is stored.
- Bitmask value: A combination (with bitwise OR) of any number of floating-point exception values supported by the implementation:
Certain library implementations may support additional floating-point exception values (with their corresponding macros also beginning with
|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.|
|FE_ALL_EXCEPT||All exceptions (selects all of the exceptions supported by the implementation).|
Libraries may define in
only the macro values above they support (the others may not be defined).
At least all of the above macro values are defined in
(even if not supported by the implementation).
Zero, if the representation was successfully stored.
A non-zero value otherwise.
Concurrently calling this function is safe, causing no data races.
No-throw guarantee: this function never throws exceptions.