[Bug c++/14603] New: constructors within constructor fails

[Bug c++/14603] New: constructors within constructor fails

[bjorn at fiskbil dot org]

When trying to call a constructor with two constructors, the two constructors
are called with indexed arrays, in it g++ refuses to compile it. It works if I
create variables outside of the first constructor and pass them in. Instead of
rambling I'll just show you the code and the errors.

class Vector {
public:
  Vector() {}
  Vector(float x, float y, float z) { coords[0]=x; coords[1]=y; coords[2]=z; }
private:
  float coords[3];
};

class Model {
public:
  Model() {}
  Model(const Vector &m, const Vector &n) { M=m; N=n; }
private:
  Vector M, N;
};

int main(int argc, char **argv) {
  float v1[3], v2[3];

  Model m(Vector(v1[0],v1[1],v1[2]), Vector(v2[0],v2[1],v2[2]));

  return 0;
}

And the output from g++ -v -save-temps testcase.cpp is this:

# g++ -v -save-temps testcase.cppu
Reading specs from /usr/lib/gcc-lib/i486-linux/3.3.3/specs
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,ob
jc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info 
--with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --with-system-zlib -
-enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gn
u --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib,gtk --enable-objc
-gc i486-linux
Thread model: posix
gcc version 3.3.3 (Debian 20040314)
 /usr/lib/gcc-lib/i486-linux/3.3.3/cc1plus -E -D__GNUG__=3 -quiet -v -D__GNUC__=
3 -D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=3 -D_GNU_SOURCE testcase.cpp testcase
.ii
ignoring nonexistent directory "/usr/i486-linux/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/include/c++/3.3
 /usr/include/c++/3.3/i486-linux
 /usr/include/c++/3.3/backward
 /usr/local/include
 /usr/lib/gcc-lib/i486-linux/3.3.3/include
 /usr/include
End of search list.
 /usr/lib/gcc-lib/i486-linux/3.3.3/cc1plus -fpreprocessed testcase.ii -quiet -du
mpbase testcase.cpp -auxbase testcase -version -o testcase.s
GNU C++ version 3.3.3 (Debian 20040314) (i486-linux)
        compiled by GNU C version 3.3.3 (Debian 20040314).
GGC heuristics: --param ggc-min-expand=64 --param ggc-min-heapsize=64354
testcase.cpp: In function `int main(int, char**)':
testcase.cpp:29: error: parse error before `,' token
testcase.cpp:29: error: no matching function for call to `Model::Model(float&, 
   float&, float&)'
testcase.cpp:12: error: candidates are: Model::Model(const Model&)
testcase.cpp:15: error:                 Model::Model(const Vector&, const 
   Vector&)
testcase.cpp:14: error:                 Model::Model()
testcase.cpp:29: error: parse error before `)' token

This is on debian unstable with gcc 3.3.3
The same error occurs on a Red Hat 8.0 gcc 3.2 box.

Lines such as this one works though

float v1x, v1y, v1z;
Model m(Vector(v1x,v1y,v1z), Vector(v2[0],v2[1],v2[2]));

or this one

Vector v(v1[0], v1[1], v2[2]);
Model m(v, Vector(v2[0],v2[1],v2[2]));

-- 
           Summary: constructors within constructor fails
           Product: gcc
           Version: 3.3.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bjorn at fiskbil dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14603

[Bug c++/14603] constructors within constructor fails

[pcarlini at suse dot de]

------- Additional Comments From pcarlini at suse dot de  2004-03-16 13:22 -------
This problem is already fixed for the forthcoming 3.4.0, thanks to a new
hand-written parser.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14603

[Bug c++/14603] constructors within constructor fails

[bangerth at dealii dot org]

------- Additional Comments From bangerth at dealii dot org  2004-03-16 14:54 -------
Indeed. Please check out 
  http://gcc.gnu.org/bugs.html 
This is a duplicate of many other bugs. 
 
W. 

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
      Known to fail|                            |3.3.4
      Known to work|                            |3.4.0
         Resolution|                            |FIXED
   Target Milestone|---                         |3.4.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14603