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This commit is contained in:
theomegacarrot 2023-03-17 14:09:30 -04:00
parent e1c72c4a88
commit 0a328c0125
1 changed files with 11 additions and 18 deletions
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29
test/std-test.cc
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@ -96,24 +96,19 @@ TEST(std_test, optional) {
#endif
}
// this struct exists only to force a variant to be
// valueless by exception
// NOLINTNEXTLINE
struct throws_on_move_t {
throws_on_move_t() = default;
struct throws_on_move {
throws_on_move() = default;
// NOLINTNEXTLINE
[[noreturn]] throws_on_move_t(throws_on_move_t&&) {
throw std::runtime_error{"Thrown by throws_on_move_t"};
[[noreturn]] throws_on_move(throws_on_move&&) {
throw std::runtime_error("Thrown by throws_on_move_t");
}
throws_on_move_t(const throws_on_move_t&) = default;
throws_on_move(const throws_on_move&) = default;
};
template <> struct fmt::formatter<throws_on_move_t> : formatter<string_view> {
template <typename FormatContext>
auto format(const throws_on_move_t&, FormatContext& ctx) const {
string_view str{"<throws_on_move_t>"};
template <> struct fmt::formatter<throws_on_move> : formatter<string_view> {
auto format(const throws_on_move&, format_context& ctx) const {
string_view str("<throws_on_move_t>");
return formatter<string_view>::format(str, ctx);
}
};
@ -150,13 +145,11 @@ TEST(std_test, variant) {
volatile int i = 42; // Test compile error before GCC 11 described in #3068.
EXPECT_EQ(fmt::format("{}", i), "42");
using V2 = std::variant<std::monostate, throws_on_move_t>;
V2 v6{};
std::variant<std::monostate, throws_on_move> v6;
try {
throws_on_move_t thrower{};
v6.emplace<throws_on_move_t>(std::move(thrower));
throws_on_move thrower;
v6.emplace<throws_on_move>(std::move(thrower));
} catch (const std::runtime_error&) {
}
// v6 is now valueless by exception