c++/9782: constructor not called on higher-dimensional arrays of template types

bangerth@dealii.org bangerth@dealii.org
Thu Feb 20 23:18:00 GMT 2003


Old Synopsis: constructor not called on typedef'd templated object
New Synopsis: constructor not called on higher-dimensional arrays of template types

State-Changed-From-To: open->analyzed
State-Changed-By: bangerth
State-Changed-When: Thu Feb 20 23:18:14 2003
State-Changed-Why:
    Confirmed with 2.95...present mainline. Problem is more
    convenient to see here:
    ----------------------------------
    extern "C" void printf(char *, ...);
    
    template <int>
    struct A {
        A() {printf("A::A()\n");}
    };
    
    
    struct B {
        B() {printf("B::B()\n");}
    };
    
    
    int main () {
      new A<0>[1][1];   // constructor apparently _not_ called
      new B   [1][1];   // constructor _is_ called
    }
    -------------------------------
    A and B differ only in that one is a template and the
    other is not. Yet, only the constructor of B is called:
    x/bug> /home/bangerth/bin/gcc-3.4-pre/bin/c++ test.C
    x/bug> ./a.out
    B::B()
    
    If we have a 1d array, both constructors run, as expected.
    
    W.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9782



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