TartanLlama/expected
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Don't copy unexpected object on throwing with exceptions disabled

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Sy Brand
2025-09-01 10:17:39 +01:00
parent 2089ecb887
commit c837ff01dd
2 changed files with 9 additions and 18 deletions
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2
CMakeLists.txt
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@@ -2,7 +2,7 @@ cmake_minimum_required(VERSION 3.14)
project(tl-expected
HOMEPAGE_URL https://tl.tartanllama.xyz
DESCRIPTION "C++11/14/17 std::expected with functional-style extensions"
VERSION 1.2.0
VERSION 1.3.0
LANGUAGES CXX)
include(CMakePackageConfigHelpers)

25
include/tl/expected.hpp
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@@ -17,7 +17,7 @@
#define TL_EXPECTED_HPP
#define TL_EXPECTED_VERSION_MAJOR 1
#define TL_EXPECTED_VERSION_MINOR 2
#define TL_EXPECTED_VERSION_MINOR 3
#define TL_EXPECTED_VERSION_PATCH 0
#include <exception>
@@ -219,20 +219,11 @@ struct unexpect_t {
};
static constexpr unexpect_t unexpect{};
namespace detail {
template <typename E>
[[noreturn]] TL_EXPECTED_11_CONSTEXPR void throw_exception(E &&e) {
#ifdef TL_EXPECTED_EXCEPTIONS_ENABLED
throw std::forward<E>(e);
#else
(void)e;
#ifdef _MSC_VER
__assume(0);
#else
__builtin_unreachable();
#define TL_EXPECTED_THROW_EXCEPTION(e) throw((e));
#elif defined(_MSC_VER)
#define TL_EXPECTED_THROW_EXCEPTION(e) std::terminate();
#endif
#endif
}
#ifndef TL_TRAITS_MUTEX
#define TL_TRAITS_MUTEX
@@ -2024,28 +2015,28 @@ public:
detail::enable_if_t<!std::is_void<U>::value> * = nullptr>
TL_EXPECTED_11_CONSTEXPR const U &value() const & {
if (!has_value())
detail::throw_exception(bad_expected_access<E>(err().value()));
TL_EXPECTED_THROW_EXCEPTION(bad_expected_access<E>(err().value()));
return val();
}
template <class U = T,
detail::enable_if_t<!std::is_void<U>::value> * = nullptr>
TL_EXPECTED_11_CONSTEXPR U &value() & {
if (!has_value())
detail::throw_exception(bad_expected_access<E>(err().value()));
TL_EXPECTED_THROW_EXCEPTION(bad_expected_access<E>(err().value()));
return val();
}
template <class U = T,
detail::enable_if_t<!std::is_void<U>::value> * = nullptr>
TL_EXPECTED_11_CONSTEXPR const U &&value() const && {
if (!has_value())
detail::throw_exception(bad_expected_access<E>(std::move(err()).value()));
TL_EXPECTED_THROW_EXCEPTION(bad_expected_access<E>(std::move(err()).value()));
return std::move(val());
}
template <class U = T,
detail::enable_if_t<!std::is_void<U>::value> * = nullptr>
TL_EXPECTED_11_CONSTEXPR U &&value() && {
if (!has_value())
detail::throw_exception(bad_expected_access<E>(std::move(err()).value()));
TL_EXPECTED_THROW_EXCEPTION(bad_expected_access<E>(std::move(err()).value()));
return std::move(val());
}