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struct no_throw {
no_throw(std::string i) : i(i) {}
std::string i;
};
struct canthrow_move {
canthrow_move(std::string i) : i(i) {}
canthrow_move(canthrow_move const &) = default;
canthrow_move(canthrow_move &&other) noexcept(false) : i(other.i) {}
canthrow_move &operator=(canthrow_move &&) = default;
std::string i;
};
bool should_throw = false;
struct willthrow_move {
willthrow_move(std::string i) : i(i) {}
willthrow_move(willthrow_move const &) = default;
willthrow_move(willthrow_move &&other) : i(other.i) {
if (should_throw)
throw 0;
}
willthrow_move &operator=(willthrow_move &&) = default;
std::string i;
};
int main() {
std::string s1 = "abcdefghijklmnopqrstuvwxyz";
std::string s2 = "zyxwvutsrqponmlkjihgfedcbaxxx";
tl::expected<no_throw, willthrow_move> a{s1};
tl::expected<no_throw, willthrow_move> b{tl::unexpect, s2};
should_throw = 1;
swap(a, b);
}
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