Let CI try c++20 modules on Linux

Author: texus

.github/workflows/ci.yml

@@ -5,9 +5,11 @@ on: [push, pull_request]
 jobs:
   linux:
     runs-on: ubuntu-22.04
+    container:
+      image: ubuntu:25.04
     env:
       GCC_VERSION: 12
-      CLANG_VERSION: 14
+      CLANG_VERSION: 19
     steps:
       - name: Checkout TGUI
         uses: actions/checkout@v4
@@ -19,7 +21,7 @@ jobs:
           sudo apt-get -y install g++-$GCC_VERSION clang-$CLANG_VERSION clang-tidy-$CLANG_VERSION ninja-build cppcheck
           sudo apt-get -y install libsfml-dev libsdl2-dev libsdl2-ttf-dev libglfw3-dev libraylib5-dev
 
-      - name: Build TGUI (recent gcc)
+      - name: Build TGUI (gcc)
         run: >
           cmake -B TGUI-build-gcc -GNinja
           -DCMAKE_CXX_CPPCHECK="cppcheck;--enable=all;--inline-suppr;--quiet;--suppress=*:*/extlibs/*;--suppress=preprocessorErrorDirective;--suppress=noExplicitConstructor;--suppress=unmatchedSuppression;--suppress=missingIncludeSystem;--suppress=useStlAlgorithm;--suppress=passedByValue;--suppress=unusedFunction;--suppress=virtualCallInConstructor"
@@ -47,12 +49,13 @@ jobs:
 
           cmake --build TGUI-build-gcc --config Debug --target install
 
-      - name: Build TGUI (recent clang)
+      - name: Build TGUI (clang with c++20 module)
         run: >
           cmake -B TGUI-build-clang -GNinja
           -DCMAKE_CXX_COMPILER=clang++-$CLANG_VERSION
           -DBUILD_SHARED_LIBS=ON
-          -DTGUI_CXX_STANDARD=17
+          -DTGUI_BUILD_CXX20_MODULE=ON
+          -DTGUI_CXX_STANDARD=20
           -DTGUI_WARNINGS_AS_ERRORS=ON
           -DTGUI_BUILD_EXAMPLES=ON
           -DTGUI_BUILD_GUI_BUILDER=ON
@@ -601,7 +604,7 @@ jobs:
           7z x raylib-${env:RAYLIB_VERSION}_win32_msvc16.zip
           7z x v${env:FREETYPE_VERSION}.zip
 
-      - name: Build TGUI (with c++20 module)
+      - name: Build TGUI
         run: >
           cmake -B TGUI-build -T v${env:MSVC_TOOLSET_VERSION} -A Win32
           -DSFML_ROOT="${env:GITHUB_WORKSPACE}/SFML-${env:SFML_VERSION}/"
@@ -614,8 +617,7 @@ jobs:
           -DFREETYPE_WINDOWS_BINARIES_PATH="${env:GITHUB_WORKSPACE}/freetype-windows-binaries-${env:FREETYPE_VERSION}"
           -DCMAKE_INSTALL_PREFIX=TGUI-build/install
           -DCMAKE_UNITY_BUILD=OFF
-          -DTGUI_BUILD_CXX20_MODULE=ON
-          -DBUILD_SHARED_LIBS=OFF
+          -DBUILD_SHARED_LIBS=ON
           -DTGUI_CXX_STANDARD=23
           -DTGUI_WARNINGS_AS_ERRORS=ON
           -DTGUI_BUILD_EXAMPLES=ON

tests/Outline.cpp

@@ -35,8 +35,8 @@ TEST_CASE("[Outline]")
             REQUIRE(outline.getTop() == 0);
             REQUIRE(outline.getRight() == 0);
             REQUIRE(outline.getBottom() == 0);
-            REQUIRE(outline.getLeftPlusRight() = 0);
-            REQUIRE(outline.getTopPlusBottom() = 0);
+            REQUIRE(outline.getLeftPlusRight() == 0);
+            REQUIRE(outline.getTopPlusBottom() == 0);
 
             outline = tgui::Outline(20);
             REQUIRE(outline.getLeft() == 20);
@@ -55,8 +55,8 @@ TEST_CASE("[Outline]")
             REQUIRE(outline.getTop() == 2);
             REQUIRE(outline.getRight() == 3);
             REQUIRE(outline.getBottom() == 4);
-            REQUIRE(outline.getLeftPlusRight() = 4);
-            REQUIRE(outline.getTopPlusBottom() = 6);
+            REQUIRE(outline.getLeftPlusRight() == 4);
+            REQUIRE(outline.getTopPlusBottom() == 6);
         }
 
         SECTION("Relative")