[clang] [Clang] suggest headers on undeclared errors (#120388) (PR #140247)

[Vlad Serebrennikov via cfe-commits]

================
@@ -1474,6 +1474,7 @@ namespace cwg387 { // cwg387: 2.8
       a = gcd(a, b);
       b = gcd(3, 4);
       // expected-error@-1 {{use of undeclared identifier 'gcd'}}
+      // expected-note@-2 {{perhaps `#include <numeric>` is needed?}}
----------------
Endilll wrote:

```suggestion
      //   expected-note@-2 {{perhaps `#include <numeric>` is needed?}}
```

https://github.com/llvm/llvm-project/pull/140247
_______________________________________________
cfe-commits mailing list
cfe-commits@lists.llvm.org
https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits