[Bug c/35523] Wrong result for constant float expression

[martin dot apel at simpack dot de]

------- Comment #4 from martin dot apel at simpack dot de  2008-03-10 16:33 -------
(In reply to comment #3)
> gcc-4.3 -o t t.i
> ./t
> sin(cos(tan(PI/2))) = -0.280611
> 
> gcc-4.3 -o t t.i -fno-builtin -lm
> ./t
> sin(cos(tan(PI/2))) = -0.280611
> 
> works for me?
> 

It compiles and runs, but the result is wrong. Using a calculator or gcc-4.2
for the same programs yields a result of -0.8273508412530949929.

Martin


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35523