template lambda not compiling

[kobi-ca]

Shouldn't this work with 17 or 2a?

#include <iostream>
 
int main()
{
	auto foo = []<typename T>(T i) { return 1; };
    foo(3);
    return 0;
}

[kobi-ca]

getting

/home/insights/insights.cpp:7:15: error: expected body of lambda expression
        auto foo = []<typename T>(T i) { return 1; };
                     ^
/home/insights/insights.cpp:7:25: error: expected a qualified name after 'typename'
        auto foo = []<typename T>(T i) { return 1; };
                               ^
2 errors generated.

[andreasfertig]

Hello @kobi-ca,

you are trying to use P0428R2 which is a 2a feature. However, it is not implemented in Clang yet (see also cppreference.com).
I'm already watching the progress, but even if it gets implemented in Clang it will take to the next major release to be available in C++ Insights.
I leave that issue open until it is available.

Andreas

[kobi-ca]

got it. thanks for the clarification.