[Bug c++/115810] Strange warning messages

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115810

--- Comment #14 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Like Andrew showed in comment 6, the confusing lines in the ubuntu output
should be showing the context:

  550 |     return [&]<utempl::ConstexprString... names, typename...
Components, Options... Options>(
      |           
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  551 |                ComponentConfig<names, Components, Options>...) {
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  552 |       return DependencyGraph<DependencyGraphElement<names,
      |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  553 |                                                    
[]<utempl::ConstexprString name, typename Component, ::cserver::Options
OOptions>(
      |                                                    
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  554 |                                                        
ComponentConfig<name, Component, OOptions>) {
      |                                                        
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  555 |                                                      
impl::DependencyInfoInjector<Component, name, config, ComponentConfigs...>
injector;
      |                                                      
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  556 |                                                      
injector.Inject();
      |                                                      
~~~~~~~~~~~~~~~~~~
  557 |                                                       return
injector.GetDependencies();
      |                                                      
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  558 |                                                    
}(ComponentConfigs{})>...>{};
      |                                                    
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  559 |     }(ComponentConfigs{}...);
      |     ~^~~~~~~~~~~~~~~~~~~~~~~


For some reason in the ubuntu output, each of those ~~~~~ lines is incorrectly
prefixed by a locus:

/cserver/build/_deps/utempl-src/include/utempl/utils.hpp:180:40: warning:     |
~~~