gdb 3.5 is_nan bug

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Article #10092

#10092

From: Jay Norwood
Date: Tue, 31 Jul 1990 20:33

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The is_nan function in valprint.c of gdb 3.5 incorrectly tests
for the double precision NaN. In the last line of the function, the
expression (highhalf & 0xfffff == 0) needs to be changed to
((highhalf & 0xfffff) == 0) in order for the evaluation of the
expression to be valid.  As it is now, double precision Inf will
print as NaN as a result of is_nan returning true for the test.
Jay Norwood

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From: oakhill!ray!jay@CS.UTEXAS.EDU (Jay Norwood)
Newsgroups: gnu.gdb.bug
Subject: gdb 3.5 is_nan bug
Message-ID: <9007312033.AA18288@ray.sun.com>
Date: 31 Jul 90 20:33:32 GMT
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Posted: Tue Jul 31 21:33:32 1990