https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85021
Bug ID: 85021
Summary: "Missing #include" hints for unrecognized names that
would implicitly be in "std"
Product: gcc
Version: 8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dmalcolm at gcc dot gnu.org
Target Milestone: ---
We provide fix-it hints for the most common "std::" names:
void f() {
std::cout << "test";
}
<source>: In function 'void f()':
<source>:2:10: error: 'cout' is not a member of 'std'
std::cout << "test";
^~~~
<source>:2:10: note: 'std::cout' is defined in header '<iostream>'; did you
forget to '#include <iostream>'?
+#include <iostream>
void f() {
std::cout << "test";
^~~~
However we don't yet provide a fix-it hint for:
using namespace std;
void f() {
cout << "test";
}
<source>: In function 'void f()':
<source>:3:5: error: 'cout' was not declared in this scope
cout << "test";
^~~~
We probably should handle such names if there's a "using namespace std;"
active, and print something like:
<source>: In function 'void f()':
<source>:3:5: error: 'cout' was not declared in this scope
cout << "test";
^~~~
<source>:3:5: note: 'std::cout' is defined in header '<iostream>'; did you
forget to '#include <iostream>'?
+#include <iostream>
void f() {
cout << "test";
^~~~
