https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111681
Bug ID: 111681
Summary: Missing fixit for exception name in catch
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
CC: dmalcolm at gcc dot gnu.org
Target Milestone: ---
Noticed with a Blender issue w/ GCC 13 (missing transitive include for
<system_error>, https://bugs.gentoo.org/914740).
If I just take the example at
https://en.cppreference.com/w/cpp/error/system_error and mangle it, I get:
```
#include <thread>
int main()
{
try
{
std::thread().detach(); // attempt to detach a non-thread
}
catch(const std::system_error& e)
{
std::cout << "Caught system_error with code "
"[" << e.code() << "] meaning "
"[" << e.what() << "]\n";
}
}
```
with:
```
$ g++-14 /tmp/foo.cxx -o /tmp/foo
/tmp/foo.cxx: In function ‘int main()’:
/tmp/foo.cxx:9:34: error: expected unqualified-id before ‘&’ token
9 | catch(const std::system_error& e)
| ^
/tmp/foo.cxx:9:34: error: expected ‘)’ before ‘&’ token
9 | catch(const std::system_error& e)
| ~ ^
| )
/tmp/foo.cxx:9:34: error: expected ‘{’ before ‘&’ token
/tmp/foo.cxx:9:36: error: ‘e’ was not declared in this scope
9 | catch(const std::system_error& e)
| ^
```
The error message here could be better, but even better would be a fixit saying
to include <system_error>.
