Re: c++/7456: SegFault with deducting template args from variably sized arrays

Re: c++/7456: SegFault with deducting template args from variably sized arrays

[bangerth]

Old Synopsis: #243 gcc2.96 - template problems
New Synopsis: SegFault with deducting template args from variably sized arrays

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Fri Jan 10 17:24:09 2003
State-Changed-Why:
    I doubt this is legal, but it shouldn't segfault either.
    In any case, this still happens even with present 3.4, as
    well as with all other versions in between.
    
    Testcase:
    ---------------------------
    template <int H, int W>
    void function(int (&wmarker)[H][W]) {};
    
    void method() {
      int h=1, w=2;
    
      int array[h][w];
      function(array);
    }
    --------------------------
    
    tmp/g> /home/bangerth/bin/gcc-3.3-pre/bin/gcc -c bug.cc
    bug.cc: In function `void method()':
    bug.cc:8: internal compiler error: Segmentation fault
    Please submit a full bug report,
    with preprocessed source if appropriate.
    See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
    
    
    tmp/g> /home/bangerth/bin/gcc-3.4-pre/bin/gcc -c bug.cc
    bug.cc: In function `void function(int (&)[H][W])':
    bug.cc:2: error: variable-size type declared outside of any function
    bug.cc:2: error: variable-size type declared outside of any function
    bug.cc:2: error: variable-size type declared outside of any function
    bug.cc:2: error: variable-size type declared outside of any function
    bug.cc: In function `void method()':
    bug.cc:8: internal compiler error: Segmentation fault
    Please submit a full bug report,
    with preprocessed source if appropriate.
    See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=7456