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* [Bug c++/16879] New: variable declaration not allowed
@ 2004-08-04 18:32 bhorner at wernervas dot com
0 siblings, 0 replies; only message in thread
From: bhorner at wernervas dot com @ 2004-08-04 18:32 UTC (permalink / raw)
To: gcc-bugs
I'm the following version of gcc (as reported by gcc_select)
gcc version 3.3 20030304 (Apple Computer, Inc. build 1495)
My system is (as reported by "About This Mac"):
Model:
PowerBook G4 17"
Operating system:
Mac OS X Version 10.3.4
Processor:
1 GHz PowerPC G4
1 MB L3 cache
Memory:
1 GB DDR SDRAM
gcc was configured / built / installed by the Mac developer tools install program.
the command line that triggers the bug is:
g++ main.cpp
compiler output (from g++ -v -save-temps main.cpp):
Reading specs from /usr/libexec/gcc/darwin/ppc/3.3/specs
Thread model: posix
gcc version 3.3 20030304 (Apple Computer, Inc. build 1495)
/usr/libexec/gcc/darwin/ppc/3.3/cc1plus -E -D__GNUG__=3 -quiet -v -D__GNUC__=3
-D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=0 -D__APPLE_CC__=1495 -D__DYNAMIC__
main.cpp -fPIC -D__private_extern__=extern main.ii
ignoring nonexistent directory "/usr/ppc-darwin/include"
ignoring nonexistent directory "/Local/Library/Frameworks"
#include "..." search starts here:
#include <...> search starts here:
/usr/include/gcc/darwin/3.3/c++
/usr/include/gcc/darwin/3.3/c++/ppc-darwin
/usr/include/gcc/darwin/3.3/c++/backward
/usr/local/include
/usr/include/gcc/darwin/3.3
/usr/include
End of search list.
Framework search starts here:
/System/Library/Frameworks
/Library/Frameworks
End of framework search list.
/usr/libexec/gcc/darwin/ppc/3.3/cc1plus -fpreprocessed main.ii -fPIC -quiet -dumpbase main.cpp
-auxbase main -version -D__private_extern__=extern -o main.s
GNU C++ version 3.3 20030304 (Apple Computer, Inc. build 1495) (ppc-darwin)
compiled by GNU C version 3.3 20030304 (Apple Computer, Inc. build 1495).
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=131072
main.cpp: In function `int main()':
main.cpp:28: error: variable declaration is not allowed here
my actual source code (which contains no includes or anything, but does contain examples):
template <typename T>
class ParameterMember{
private:
T m_T_inst;
public:
ParameterMember(const T& T_inst): m_T_inst(T_inst){}
};
typedef ParameterMember<int> PrimitiveMember;
typedef ParameterMember<PrimitiveMember> InstanceMember;
int main(){
//----------------------------------------------------------------------------
// this doesn't compile; "error: variable declaration is not allowed here"
ParameterMember<InstanceMember> x(InstanceMember(PrimitiveMember(10)));
//----------------------------------------------------------------------------
// why is variable declaration not allowed above?
//----------------------------------------------------------------------------
// this compiles
// ParameterMember<IntstanceMember> is constructed as a temporary
// ParameterMember<InstanceMember>(InstanceMember(PrimitiveMember(10)));
//----------------------------------------------------------------------------
// this compiles
// default assignment of temporary to declared variable... (initialization?)
// ParameterMember<InstanceMember> x =
ParameterMember<InstanceMember>(InstanceMember(PrimitiveMember(10)));
//----------------------------------------------------------------------------
// this compiles
// ParameterMember<InstanceMember> is constructed from a temporary InstanceMember
// PrimitiveMember prm(10);
// ParameterMember<InstanceMember> pm1(InstanceMember(prm));
//----------------------------------------------------------------------------
// this compiles
// IntanceMember is constructed from a temporary PrimitiveMember
// InstanceMember im(PrimitiveMember(10));
// ParameterMember<InstanceMember> pm2(im);
//----------------------------------------------------------------------------
}
--
Summary: variable declaration not allowed
Product: gcc
Version: 3.3
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bhorner at wernervas dot com
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16879
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2004-08-04 18:32 [Bug c++/16879] New: variable declaration not allowed bhorner at wernervas dot com
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