6.11.4 Math Error Condition Macros
MATH_ERRNO
This macro has the value 1 and is usable with math_errhandling to
determine the implementation response to a domain error.
Include
<math.h>
Value
The value 1.
MATH_ERREXCEPT
This macro has the value 2 and is usable with math_errhandling to
determine the implementation response to a domain error.
Include
<math.h>
Value
The value 2.
math_errhandling
This is a value that can be used to determine if errno will be set
or an exception will be raised on a domain error. If the value of
math_errhandling & MATH_ERRNO is true, then
errno will be updated with the appropriate error number. If the
value of math_errhandling & MATH_ERREXCEPT is true, then an
invalid floating-point exception will be raised when a domain error is
encountered.
Include
<math.h>
Value
The value 1.