https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105128
Bug ID: 105128
Summary: source_location compile error for clang
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: unlvsur at live dot com
Target Milestone: ---
It looks like clang just added source_location implementation but the built-in
looks different. Unfortunately, libcxx does not implement this either at this
point. However, the testsuite probably tells how clang implements this.
https://github.com/llvm/llvm-project/blob/d61487490022aaacc34249475fac3e208c7d767e/clang/test/CodeGenCXX/builtin-source-location.cpp
#include<source_location>
int main()
{
std::source_location::current();
}
clang++ -o sourcelocation sourcelocation.cc -Ofast -std=c++2b -s -flto=thin
-fuse-ld=lld
In file included from sourcelocation.cc:1:
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/12.0.1/../../../../include/c++/12.0.1/source_location:46:41:
error: 'std::source_location::__impl' was not found; it must be defined before
'__builtin_source_location' is called
using __builtin_ret_type = decltype(__builtin_source_location());
^
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/12.0.1/../../../../include/c++/12.0.1/source_location:52:13:
error: unknown type name '__builtin_ret_type'
current(__builtin_ret_type __p = __builtin_source_location()) noexcept
^
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/12.0.1/../../../../include/c++/12.0.1/source_location:52:32:
error: cannot initialize a parameter of type 'int' with an rvalue of type
'const std::source_location::__impl *'
current(__builtin_ret_type __p = __builtin_source_location()) noexcept
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/local/bin/../lib/gcc/x86_64-pc-linux-gnu/12.0.1/../../../../include/c++/12.0.1/source_location:52:32:
note: passing argument to parameter '__p' here
3 errors generated.
