VMS Help  —  CC  Messages  MATHERRNO
 Message        <Context> function <name> is defined to set errno
                when a domain error or range error occurs.  As an
                intrinsic, it may not be able to do so.

 Description    Any code that tests the value of errno set by this
                function may not work properly due to the
                optimizations that are possible when this function is
                an intrinsic.

 User Action    If the value of errno set by this function is
                ignored, tell the compiler via its command line
                qualifiers to assume nomath_errno.  Otherwise,
                disable the intrinsic by using a #pragma
                function(func-name).
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