RTEXCEPT

Message        <Context> the floating-point constant named "<name>"
               will cause an exception at runtime.

Description    The IEEE trap mode of this program will cause an
               exception at runtime if this floating-point constant
               is used in an expression.

User Action    If you do not choose to cause a runtime exception,
               replace the named constant with a conventional
               floating point constant.  The HUGE_VAL macros defined
               by <math.h> may be used in place of IEEE Infinities
               with any floating-point representation.