[Bug c++/13517] New: confusing error message for reference on a constant
debian-gcc at lists dot debian dot org
gcc-bugzilla@gcc.gnu.org
Tue Dec 30 12:49:00 GMT 2003
[forwarded from http://bugs.debian.org/216209]
seen with 3.3.2.
The following program consists of two classes, both with a
parametrized method. Depending on the parameter type g++ the
compilation fails or not...
-- snip --
class E1 {
public:
template <class T>
void print(T bla) { };
};
class E2 {
public:
// same as above but with a reference
template <class T>
void print(T& bla) { };
};
void foo1() {
E1 e;
// works
e.print("hurz");
// works too
e.print(23);
};
void foo2() {
E2 e;
// works
e.print("hurz");
// fails!
e.print(23);
};
int main () {
};
-- snip --
riff /tmp> g++ -Wall temptest1.cc
temptest1.cc: In function `void foo2()':
temptest1.cc:33: error: no matching function for call to
`E2::print(int)'
temptest1.cc:13: error: candidates are: void E2::print(T&) [with T =
int]
Exitcode 1
riff /tmp> g++ --version
g++ (GCC) 3.3.2 20031005 (Debian prerelease)
[...]
This behavoir is at least inconsistent and I believe it to be
buggy. However, the Intel Compiler fails on the same line, so maybe
it's a special case in the C++-specs?!
Cheers
Thimo
Followup:
I asked a second person when I filed the original bug report but now a
third person saw the problem. Yes, the call tries to create a
reference on a constant and thus cannot compile. But in that case, the
error-message is very misleading.
I've already changed the bug title and changed the severity to
wishlist.
Cheers
Thimo
--
Summary: confusing error message for reference on a constant
Product: gcc
Version: 3.3.3
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: debian-gcc at lists dot debian dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13517
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