ra-ra/test/bug83.cc

// -*- mode: c++; coding: utf-8 -*-
// ra-ra/test - Triggers gcc 8.3 ICE: in verify_ctor_sanity, at cp/constexpr.c:2805

// (c) Daniel Llorens - 2016-2017, 2019
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License as published by the Free
// Software Foundation; either version 3 of the License, or (at your option) any
// later version.

// reduced from bench/bench-stencil2.cc.
// Bisected to edad804087b3eb0d2c4b2b423aacc4341b7a6736.
// Patched by removing constexpr in big.hh: View(): p(nullptr) {}.
// Removed the patch for gcc 10.1 after 76bfad74c53e799e12d540d03318c3037bf624e0.

#include <iostream>
#include "ra/test.hh"

int
main()
{
    ra::TestRecorder tr(std::cout);
    ra::Big<double, 2> A({4, 4}, ra::_1*10 + ra::_0 + 3);
    A = ra::expr([](auto && a) { return a(0, 0); }, ra::iter<2>(A)); // [ra1]
    tr.info("A ", A).test_eq(3, A);
    return tr.summary();
}