[Bug c++/62196] New: running time segment fault with valarray

[pangbw at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62196

            Bug ID: 62196
           Summary: running time segment fault with valarray
           Product: gcc
           Version: 4.9.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: pangbw at gmail dot com

The code would segment fault at running time, I see the same result with G++
4.6.3(which comes with Ubuntu 12.04) and 4.9.1:

#include <iostream>
#include <valarray>

int main(int argc, char *argv[])
{
  const char vl[] = {"abcdefghijklmnopqrstuvwxyz"};
  const char vu[] = {"ABCDEFGHIJKLMNOPQRSTUVWXYZ"};
  const std::valarray<char> v0(vl, 27), vm6(vu, 6);
  const bool vb[] = {false, false, true, true, false, true};
  const std::valarray<bool> vmask(vb, 6);
  std::valarray<char> x = v0;

  for(int i = 0; i < x.size(); i++)
    std::cout << x[i];
  std::cout << std::endl;

  x[vmask] = vm6;

  for(int i = 0; i < x.size(); i++)
    std::cout << x[i];
  std::cout << std::endl;
  return 0;
}

The command line is just simply as:
g++ -std=c++0x x.cpp