Fix expected construction and exception safety

.github/workflows/sanitizers.yml

@@ -0,0 +1,146 @@
+name: Sanitizers
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+      - ci/**
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  test-on-msvc:
+    strategy:
+      fail-fast: false
+
+      matrix:
+        build-type: [Debug, Release]
+        include:
+          - build-type: Debug
+            cmake-preset: conan-debug
+          - build-type: Release
+            cmake-preset: conan-release
+
+    name: MSVC v143 - ASan - ${{ matrix.build-type }}
+
+    runs-on: windows-2022
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Setup MSVC developer environment
+        uses: TheMrMilchmann/setup-msvc-dev@v4
+        with:
+          arch: x64
+
+      - name: Install Conan
+        uses: turtlebrowser/get-conan@main
+
+      - name: Setup Conan
+        run: |
+          conan --version
+          conan profile detect
+
+      - name: Install CMake
+        uses: lukka/get-cmake@latest
+
+      - name: Install dependencies
+        run: >
+          conan install .
+          -c tools.microsoft.msbuild:vs_version=17
+          -s compiler.version=194
+          -s compiler.cppstd=23
+          -s build_type=${{ matrix.build-type }}
+          -b missing
+
+      - name: CMake Configure
+        run: >
+          cmake --preset conan-default
+          -DZEUS_EXPECTED_TEST_ASAN_REQUIRED=ON
+
+      - name: Build
+        run: cmake --build --preset ${{ matrix.cmake-preset }}
+
+      - name: Test
+        run: ctest --preset ${{ matrix.cmake-preset }} --output-on-failure
+
+  test-on-linux:
+    strategy:
+      fail-fast: false
+
+      matrix:
+        compiler:
+          - name: GCC 15
+            id: gcc
+            version: 15
+            cc: gcc-15
+            cxx: g++-15
+          - name: Clang 22
+            id: clang
+            version: 22
+            cc: clang-22
+            cxx: clang++-22
+        build-type: [Debug, Release]
+        include:
+          - build-type: Debug
+            cmake-preset: conan-debug
+          - build-type: Release
+            cmake-preset: conan-release
+
+    name: ${{ matrix.compiler.name }} - ASan + UBSan - ${{ matrix.build-type }}
+
+    runs-on: ubuntu-24.04
+
+    env:
+      CC: ${{ matrix.compiler.cc }}
+      CXX: ${{ matrix.compiler.cxx }}
+
+    steps:
+      - uses: actions/checkout@v7
+
+      - name: Setup GCC
+        if: matrix.compiler.id == 'gcc'
+        uses: egor-tensin/setup-gcc@v2
+        with:
+          version: ${{ matrix.compiler.version }}
+
+      - name: Setup Clang
+        if: matrix.compiler.id == 'clang'
+        uses: egor-tensin/setup-clang@v2
+        with:
+          version: ${{ matrix.compiler.version }}
+
+      - name: Install Conan
+        uses: turtlebrowser/get-conan@main
+
+      - name: Setup Conan
+        run: |
+          conan --version
+          conan profile detect --force
+
+      - name: Install CMake
+        uses: lukka/get-cmake@latest
+
+      - name: Install dependencies
+        run: >
+          conan install .
+          -s compiler.cppstd=23
+          -s build_type=${{ matrix.build-type }}
+          -b missing
+
+      - name: CMake Configure
+        run: >
+          cmake --preset ${{ matrix.cmake-preset }}
+          -DZEUS_EXPECTED_TEST_ASAN_REQUIRED=ON
+          -DZEUS_EXPECTED_TEST_UBSAN_REQUIRED=ON
+
+      - name: Build
+        run: cmake --build --preset ${{ matrix.cmake-preset }}
+
+      - name: Test
+        run: ctest --preset ${{ matrix.cmake-preset }} --output-on-failure

.github/workflows/tests.yml

@@ -37,7 +37,7 @@ jobs:
     runs-on: windows-2022
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install Conan
         uses: turtlebrowser/get-conan@main
@@ -62,7 +62,7 @@ jobs:
       - name: CMake Configure
         run: |
           cmake --list-presets
-          cmake --preset conan-default
+          cmake --preset conan-default -DZEUS_EXPECTED_TEST_ASAN_AUTO=OFF -DZEUS_EXPECTED_TEST_UBSAN_AUTO=OFF
 
       - name: Build
         run: |
@@ -99,7 +99,7 @@ jobs:
     runs-on: ${{ matrix.gcc.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Setup GCC
         if: matrix.gcc.version == 15
@@ -134,7 +134,7 @@ jobs:
       - name: CMake Configure
         run: |
           cmake --list-presets
-          cmake --preset ${{ matrix.cmake-preset }}
+          cmake --preset ${{ matrix.cmake-preset }} -DZEUS_EXPECTED_TEST_ASAN_AUTO=OFF -DZEUS_EXPECTED_TEST_UBSAN_AUTO=OFF
 
       - name: Build
         run: |
@@ -185,7 +185,7 @@ jobs:
             python3-pip \
             unzip
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Check GCC Version
         run: |
@@ -214,7 +214,7 @@ jobs:
       - name: CMake Configure
         run: |
           cmake --list-presets
-          cmake --preset ${{ matrix.cmake-preset }}
+          cmake --preset ${{ matrix.cmake-preset }} -DZEUS_EXPECTED_TEST_ASAN_AUTO=OFF -DZEUS_EXPECTED_TEST_UBSAN_AUTO=OFF
 
       - name: Build
         run: |
@@ -252,7 +252,7 @@ jobs:
       CXX: clang++-${{ matrix.clang-version }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Install Clang
         uses: egor-tensin/setup-clang@v2
@@ -294,7 +294,7 @@ jobs:
       - name: CMake Configure
         run: |
           cmake --list-presets
-          cmake --preset ${{ matrix.cmake-preset }}
+          cmake --preset ${{ matrix.cmake-preset }} -DZEUS_EXPECTED_TEST_ASAN_AUTO=OFF -DZEUS_EXPECTED_TEST_UBSAN_AUTO=OFF
 
       - name: Build
         run: |
@@ -326,7 +326,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Setup GCC
         uses: egor-tensin/setup-gcc@v1
@@ -360,7 +360,7 @@ jobs:
       - name: CMake Configure
         run: |
           cmake --list-presets
-          cmake --preset ${{ matrix.cmake-preset }}
+          cmake --preset ${{ matrix.cmake-preset }} -DZEUS_EXPECTED_TEST_ASAN_AUTO=OFF -DZEUS_EXPECTED_TEST_UBSAN_AUTO=OFF
 
       - name: Build
         run: |

README.md

@@ -4,7 +4,7 @@
 [![GitHub Release](https://img.shields.io/github/v/release/zeus-cpp/expected?color=green)](https://github.com/zeus-cpp/expected/releases)
 [![Conan Center](https://img.shields.io/conan/v/zeus_expected)](https://conan.io/center/recipes/zeus_expected)
 
-Backporting `std::expected` to C++17.
+A C++17 backport of `std::expected`, designed for API compatibility with the standard library.
 
 ## Features
 
@@ -32,18 +32,17 @@ Enhancements:
 
 + Enhanced noexcept (covered by tests from MSVC's STL)
 
-## Compiler supports
+## Compiler support
 
-Any compiler that supports C++17 should work.
+A conforming C++17 implementation is required. Higher language standards are also supported and can provide benefits such as enhanced constexpr capabilities.
 
-Higher language standards are also supported, which can provide benefits such as enhanced constexpr capabilities.
+| Compiler | Supported versions |
+| --- | --- |
+| MSVC | v142 and later |
+| GCC | 8 and later |
+| Clang | 11 and later |
 
-List of known compiler supported:
-
-+ MSVC v142 and later
-+ GCC 8 and later
-
-Feedbacks are welcome.
+See the [CI workflow](.github/workflows/tests.yml) for the compiler and language standard combinations that are continuously tested. Other conforming compilers may also work. Feedback is welcome.
 
 ## Building and testing