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Re: [[patch] valarray (was Re: valarray_copy implementation question)


what about

#include <valarray>
using namespace std;

int main(void)
{
  int n = 1;

  valarray<int>  dest(n);
  valarray<bool> b(false, n);
  valarray<int>  src(1, n);

dest[b] = src;

  return 0;
}

is it a user error also ?

thanks

Christian

Gabriel Dos Reis wrote:
On Thu, Nov 26, 2009 at 5:42 AM, Christian BRUEL <christian.bruel@st.com> wrote:
This disposition makes your example above have an undefined behaviour.
this : myarray[mymask] += valarray<int>(3,n);

is undefined ???
with
myarray = size 10
valrarray = size 10
mymask = size 10, 2 true bits.

Yes.


oh well...

I've recorded the original bug
at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42182

It should be closed as 'user error'.


-- Gaby



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