This code leads to the adding of 0.0, which is a nop. Any
signalling should have been done previously.
i...@linux-fd1f:/tmp cat mult.f90
subroutine foo(a,b,c)
real, intent(in) :: a,b
real, intent(out) :: c
c = 0.0
c = c + a*b
end subroutine foo
i...@linux-fd1f:/tmp gfortran -O3
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On May 14, 2010, at 2:18 AM, tkoenig at gcc dot gnu dot org gcc-bugzi...@gcc.gnu.org
wrote:
This code leads to the adding of 0.0, which is a nop. Any
signalling should have been done previously.
It is not signalling that matters here but signed zero. 0.0 + -0.0 ==
