Defect in XBD math.h

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        Defect report from : Mark Brown , IBM

(Please direct followup comments direct to yyyyyyyyyyyyyy@xxxxxxxxxxxxx)

@ page 264 line 9407 section math.h editorial {IBM-020701}

Problem:

Defect code :  1. Error

The spec states the following:

"The following macros shall expand to integer constant expressions
whose values are returned by ilogb (x) if x is zero or NaN,
respectively. The value of FP_ILOGB0 shall be either {INT_MIN}
or -{INT_MAX}. The value of FP_ILOGBNAN shall be either {INT_MAX}
or {INT_MIN}."

Normally, a statement like; " <math.h> may make symbols from <limits.h> 
visible"  is included in the description to allow required definitions to be 
visible. But for math.h this was not done, so INT_MIN and INT_MAX are not 
defined in math.h.

Action:

add "<math.h> may make symbols from <limits.h> visible" in the description for 
math.h, say after line 9417.