[llvm-bugs] [Bug 49462] New: type alias that is not fully resolved in the error message

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=49462

            Bug ID: 49462
           Summary: type alias that is not fully resolved in the error
                    message
           Product: clang
           Version: 11.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C++17
          Assignee: unassignedclangbugs at nondot.org
          Reporter: jonathan.poelen at gmail.com
                CC: blitzrakete at gmail.com, erik.pilkington at gmail.com,
                    llvm-bugs at lists.llvm.org, richard-llvm at metafoo.co.uk

with clang -std=c++17 test.cpp and

using l = std::make_index_sequence<9999>;
using f = drop_while<is_not_9992>;
emp_call<l>::f<f> x = 1;


test.cpp:202:19: error: no viable conversion from 'int' to 'emp_call<l>::f<f>'
(aka '_drop_while_result<0UL + sizeof...(xs)>')
emp_call<l>::f<f> x = 1;
                  ^   ~

'_drop_while_result<0UL + sizeof...(xs)>' should be '_drop_while_result<6UL>'.


I couldn't make a code smaller than 200 lines because the error occurs from
9992 and above.

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