[Bug c++/107906] linkage of template not taken into account
pinskia at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Nov 29 08:57:09 GMT 2022
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107906
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to fail| |4.1.2
Summary|Function template |linkage of template not
|specialization given weak |taken into account
|rather than local symbol |
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>specializations
That is not a specialization, that is an instantiation.
>So it's somehow a mistake of function templates.
It is not function templates which is causing the issue. Rather than it is
template taking another template type which is causing issues.
E.g.
```
namespace {
template<class>
struct Y{};
}
template<template<class> class Q>
struct f{
f(){__builtin_printf("Hello.\n");}
};
f<Y> z;
```
f<Y>'s ctor is emitted as a weak symbol.
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