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// PR gcov-profile/88045
// { dg-options "-fprofile-arcs -ftest-coverage -std=c++11" }
// { dg-do run { target native } }
#include <numeric>
#include <vector>
#include <stdlib.h>
struct Foo {
size_t size() const { return n; };
const size_t n;
explicit Foo(size_t a_n) : n{a_n} {};
};
template<template<typename...> class C, typename Head, typename... Tail>
struct make_with_tail {
using type = C<Tail...>;
};
template<template<typename...> class C, typename T, typename Head, typename... Tail>
struct make_with_tail_1 {
using type = C<T, Tail...>;
};
template<typename Head, typename... Tail>
struct head {
using type = Head;
};
template<typename... Ts>
struct Tree {
using root_type = typename head<Ts...>::type;
using branch_type = typename make_with_tail<Tree, Ts...>::type;
Tree(root_type a_root, std::vector<branch_type> a_branches) :
root{std::move(a_root)},
branches{std::move(a_branches)}
{
}
explicit Tree(root_type a_root) : root{std::move(a_root)}, branches{root.size()}
{
}
root_type root;
std::vector<branch_type> branches;
};
template<>
struct Tree<> {
};
template<typename... Axes>
size_t size(const Tree<Axes...>& tree)
{
return std::accumulate(
tree.branches.begin(),
tree.branches.end(),
0,
[](const size_t& count, const typename make_with_tail<Tree, Axes...>::type& branch) {
return count + size(branch);
});
}
template<>
inline size_t size(const Tree<>& /* empty tree */)
{
return 1;
}
int main(int argc, char *argv[])
{
size(Tree<Foo, Foo, Foo>{Foo{4}, {Tree<Foo, Foo>{Foo{2}, {Tree<Foo>{Foo{205}},
Tree<Foo>{Foo{261}}}},
Tree<Foo, Foo>{Foo{4}, {Tree<Foo>{Foo{875}},
Tree<Foo>{Foo{492}},
Tree<Foo>{Foo{398}},
Tree<Foo>{Foo{302}}}},
Tree<Foo, Foo>{Foo{6}, {Tree<Foo>{Foo{111}},
Tree<Foo>{Foo{436}},
Tree<Foo>{Foo{388}},
Tree<Foo>{Foo{879}},
Tree<Foo>{Foo{783}},
Tree<Foo>{Foo{735}}}},
Tree<Foo, Foo>{Foo{3}, {Tree<Foo>{Foo{791}},
Tree<Foo>{Foo{ 5}},
Tree<Foo>{Foo{841}}}}}});
return 0;
}
// { dg-final { run-gcov pr88045.C } }
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