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saarraz / clang-concepts-monorepo

****** OBSOLETE - CONCEPTS HAS BEEN MERGED INTO CLANG TRUNK AND DEVELOPMENT CONTINUES THERE ****** This fork of llvm-project contains my implementation of C++2a Concepts for the Clang compiler, and will be updated regularly with bug fixes until the whole feature is merged to trunk. Follow the instructions here https://clang.llvm.org/get_started.html to build, then use the flags "-std=c++2a -Xclang -fconcepts-ts" to enable concepts.
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range-v3 example doesn't compile #46

Open PetrKudr opened 4 years ago

PetrKudr commented 4 years ago

https://godbolt.org/z/3KQF-g

#include <iostream>
#include <vector>

#include <range/v3/numeric/accumulate.hpp>
#include <range/v3/view/iota.hpp>
#include <range/v3/view/take.hpp>
#include <range/v3/view/transform.hpp>
using std::cout;

int main()
{
    using namespace ranges;
    int sum = accumulate(views::ints(1, unreachable) | views::transform([](int i) {
                             return i * i;
                         }) | views::take(10),
                         0);
    // prints: 385
    cout << sum << '\n';
}
JohelEGP commented 4 years ago

GCC ICEs: https://godbolt.org/z/zfyoaT.

marehr commented 4 years ago

Trunk compiles this now: https://godbolt.org/z/JSFGbo