https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91345
Bug ID: 91345
Summary: Typedef'ed restrict pointers may break compilation.
Product: gcc
Version: 9.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: a-yee at u dot northwestern.edu
Target Milestone: ---
Potentially Related:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91344
The following code compiles on Clang, MSVC, and ICC. But it fails on GCC.
https://godbolt.org/z/6pTjDc
#ifdef _WIN32
#define RESTRICT __restrict
#else
#define RESTRICT __restrict__
#endif
template <typename type> using r_ptr = type *RESTRICT;
template <typename Type>
class Child{
void func(r_ptr<int> ptr);
};
template <> void Child<int>::func(r_ptr<int> ptr){}
GCC fails to compile it:
<source>:8:18: error: template-id 'func<>' for 'void
Child<int>::func(r_ptr<int>)' does not match any template declaration
8 | template <> void Child<int>::func(r_ptr<int> ptr){}
| ^~~~~~~~~~
<source>:8:49: note: saw 1 'template<>', need 2 for specializing a member
function template
8 | template <> void Child<int>::func(r_ptr<int> ptr){}
| ^
ASM generation compiler returned: 1
<source>:8:18: error: template-id 'func<>' for 'void
Child<int>::func(r_ptr<int>)' does not match any template declaration
8 | template <> void Child<int>::func(r_ptr<int> ptr){}
| ^~~~~~~~~~
<source>:8:49: note: saw 1 'template<>', need 2 for specializing a member
function template
8 | template <> void Child<int>::func(r_ptr<int> ptr){}
| ^
Execution build compiler returned: 1
