https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99019
Bug ID: 99019
Summary: A nicer error hint, for cpp modules, if missing
headers
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: StevenSun2021 at hotmail dot com
Target Milestone: ---
This is not a bug but can be improved.
If I forget to include headers, like the following
-------------------------------
export module B;
export void foo()
{
std::cout << 1;
}
-------------------------------
Compile it with g++ 11, I get an error hint:
-------------------------------
test.cpp: In function ‘void foo()’:
test.cpp:5:10: error: ‘cout’ is not a member of ‘std’
5 | std::cout << 1;
| ^~~~
test.cpp:1:1: note: ‘std::cout’ is defined in header ‘<iostream>’; did you
forget to ‘#include <iostream>’?
+++ |+#include <iostream>
1 | export module B;
-------------------------------
Actually it should be
+++ |+module;
+++ |+#include <iostream>
1 | export module B;
Using a build of brunch devel/c++-modules. Built 3 days ago.
