http://llvm.org/bugs/show_bug.cgi?id=10086
Summary: Explicit Template Instantiation without Original
Template Definition
Product: clang
Version: unspecified
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
CLANG seems to accept explicit template instantiation without a previous
template definition. The following example is accepted by clang++, but rejected
by g++:
[Example "A.cpp"
template void foobar(int i) {
// ...
}
int main() {
foobar(5);
}
end example]
~$clang++ A.cpp // Accept
~$g++ A.cpp // 'foobar' is not a template function
CLANG may threat the function as some kind of "overload", because in the
example, "foobar" is defined with a body statement. After removing the function
body, CLANG rejects the example code. However, the original situation should
not be possible. The example is accepted by g++ if a previous template
definition exists.
Regards
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