[Bug c++/39858] C++: "expected primary-expression" error could be more useful

[manu at gcc dot gnu dot org]

------- Comment #2 from manu at gcc dot gnu dot org  2009-08-05 10:16 -------
At the moment the parser detects and reports the error, it doesn't know that it
is parsing an array subscript. We could test for typical errors before trying
to parse the expression but that would pessimize valid code. I am not sure what
is the best approach in this case.

If no expression is found, no error is reported but an empty expression is
returned, we could test that and give an appropriate error. Otherwise, we need
to propagate the context to the point where the error is reported.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39858