added an init implementation for lazy

.github/CODEOWNERS

@@ -1,15 +1,6 @@
 # SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
 # Codeowners for reviews on PRs
 
-# Note(river):
-# **Please understand how codeowner file work before uncommenting anything in this section:**
-# https://docs.github.com/en/repositories/managing-your-repositorys-settings-and-features/customizing-your-repository/about-code-owners
-#
-# For projects using exemplar as a template and intend to reuse its infrastructure,
-# River (@wusatosi) helped create most of the original infrastructure under the scope described below,
-# they are more than happy to help out with any PRs downstream,
-# as well as to sync any useful change upstream to exemplar.
-#
 # Github Actions:
 # .github/workflows/ @wusatosi # Add other project owners here
 #

.github/workflows/ci_tests.yml

@@ -58,7 +58,7 @@ jobs:
           - description: "Windows MSVC"
             os: windows-latest
             toolchain: "cmake/msvc-toolchain.cmake"
-        cpp_version: [17, 20, 23, 26]
+        cpp_version: [20, 23, 26]
         cmake_args:
           - description: "Default"
           - description: "TSan"
@@ -70,15 +70,15 @@ jobs:
               description: "Ubuntu GCC"
               os: ubuntu-latest
               toolchain: "cmake/gnu-toolchain.cmake"
-            cpp_version: 17
+            cpp_version: 23
             cmake_args:
               description: "Werror"
               args: "-DCMAKE_CXX_FLAGS='-Werror=all -Werror=extra'"
           - platform:
               description: "Ubuntu GCC"
               os: ubuntu-latest
               toolchain: "cmake/gnu-toolchain.cmake"
-            cpp_version: 17
+            cpp_version: 23
             cmake_args:
               description: "Dynamic"
               args: "-DBUILD_SHARED_LIBS=on"
@@ -119,17 +119,17 @@ jobs:
           # Portable commands only
           cmake --build build --config Release --verbose
           cmake --build build --config Release --target all_verify_interface_header_sets
-          cmake --install build --config Release --prefix /opt/beman.exemplar
-          ls -R /opt/beman.exemplar
+          cmake --install build --config Release --prefix /opt/beman.lazy
+          ls -R /opt/beman.lazy
       - name: Test Release
         run: ctest --test-dir build --build-config Release
       - name: Build Debug
         run: |
           # Portable commands only
           cmake --build build --config Debug --verbose
           cmake --build build --config Debug --target all_verify_interface_header_sets
-          cmake --install build --config Debug --prefix /opt/beman.exemplar
-          ls -R /opt/beman.exemplar
+          cmake --install build --config Debug --prefix /opt/beman.lazy
+          ls -R /opt/beman.lazy
       - name: Test Debug
         run: ctest --test-dir build --build-config Debug
 
@@ -139,9 +139,9 @@ jobs:
       matrix:
         args:
           - name: "Disable build testing"
-            arg: "-DBEMAN_EXEMPLAR_BUILD_TESTS=OFF"
+            arg: "-DBEMAN_LAZY_BUILD_TESTS=OFF"
           - name: "Disable example building"
-            arg: "-DBEMAN_EXEMPLAR_BUILD_EXAMPLES=OFF"
+            arg: "-DBEMAN_LAZY_BUILD_EXAMPLES=OFF"
     name: "CMake: ${{ matrix.args.name }}"
     steps:
       - uses: actions/checkout@v4
@@ -156,43 +156,40 @@ jobs:
           ninja --version
       - name: Configure CMake
         run: |
-          cmake -B build -S . -DCMAKE_CXX_STANDARD=17 ${{ matrix.args.arg }}
+          cmake -B build -S . -DCMAKE_CXX_STANDARD=23 ${{ matrix.args.arg }}
         env:
           CMAKE_GENERATOR: "Ninja Multi-Config"
       - name: Build Release
         run: |
           # Portable commands only
           cmake --build build --config Release --verbose
           cmake --build build --config Release --target all_verify_interface_header_sets
-          cmake --install build --config Release --prefix /opt/beman.exemplar
-          ls -R /opt/beman.exemplar
+          cmake --install build --config Release --prefix /opt/beman.lazy
+          ls -R /opt/beman.lazy
       - name: Build Debug
         run: |
           # Portable commands only
           cmake --build build --config Debug --verbose
           cmake --build build --config Debug --target all_verify_interface_header_sets
-          cmake --install build --config Debug --prefix /opt/beman.exemplar
-          ls -R /opt/beman.exemplar
+          cmake --install build --config Debug --prefix /opt/beman.lazy
+          ls -R /opt/beman.lazy
 
   compiler-test:
     runs-on: ubuntu-24.04
     strategy:
+      fail-fast: false
       matrix:
         compilers:
           - class: GNU
             version: 14
           - class: GNU
             version: 13
-          - class: GNU
-            version: 12
           - class: LLVM
             version: 20
           - class: LLVM
             version: 19
           - class: LLVM
             version: 18
-          - class: LLVM
-            version: 17
     name: "Compiler: ${{ matrix.compilers.class }} ${{ matrix.compilers.version }}"
     steps:
       - uses: actions/checkout@v4
@@ -240,8 +237,8 @@ jobs:
         run: |
           cmake --build build --config Debug --verbose
           cmake --build build --config Debug --target all_verify_interface_header_sets
-          cmake --install build --config Debug --prefix /opt/beman.exemplar
-          find /opt/beman.exemplar -type f
+          cmake --install build --config Debug --prefix /opt/beman.lazy
+          find /opt/beman.lazy -type f
       - name: Test Debug
         run: ctest --test-dir build --build-config Debug
 

CMakeLists.txt

@@ -3,52 +3,45 @@
 cmake_minimum_required(VERSION 3.25)
 
 project(
-    beman.exemplar # CMake Project Name, which is also the name of the top-level
+    beman.lazy # CMake Project Name, which is also the name of the top-level
     # targets (e.g., library, executable, etc.).
-    DESCRIPTION "A Beman library exemplar"
+    DESCRIPTION "A Beman library lazy (coroutine task)"
     LANGUAGES CXX
 )
 
 enable_testing()
 
 # [CMAKE.SKIP_TESTS]
 option(
-    BEMAN_EXEMPLAR_BUILD_TESTS
+    BEMAN_LAZY_BUILD_TESTS
     "Enable building tests and test infrastructure. Default: ON. Values: { ON, OFF }."
     ${PROJECT_IS_TOP_LEVEL}
 )
 
 # [CMAKE.SKIP_EXAMPLES]
 option(
-    BEMAN_EXEMPLAR_BUILD_EXAMPLES
+    BEMAN_LAZY_BUILD_EXAMPLES
     "Enable building examples. Default: ON. Values: { ON, OFF }."
     ${PROJECT_IS_TOP_LEVEL}
 )
 
 include(FetchContent)
 include(GNUInstallDirs)
 
-if(BEMAN_EXEMPLAR_BUILD_TESTS)
-    # Fetch GoogleTest
-    FetchContent_Declare(
-        googletest
-        GIT_REPOSITORY https://github.com/google/googletest.git
-        GIT_TAG
-            f8d7d77c06936315286eb55f8de22cd23c188571 # release-1.14.0
-        EXCLUDE_FROM_ALL
-    )
-    block()
-        set(INSTALL_GTEST OFF) # Disable GoogleTest installation
-        FetchContent_MakeAvailable(googletest)
-    endblock()
-endif()
+FetchContent_Declare(
+    execution26
+    # for local development, use SOURCE_DIR <path-to>/execution26
+    GIT_REPOSITORY https://github.com/bemanproject/execution26
+    GIT_TAG b52f28c
+)
+FetchContent_MakeAvailable(execution26)
 
-add_subdirectory(src/beman/exemplar)
+add_subdirectory(src/beman/lazy)
 
-if(BEMAN_EXEMPLAR_BUILD_TESTS)
-    add_subdirectory(tests/beman/exemplar)
+if(BEMAN_LAZY_BUILD_TESTS)
+    add_subdirectory(tests/beman/lazy)
 endif()
 
-if(BEMAN_EXEMPLAR_BUILD_EXAMPLES)
+if(BEMAN_LAZY_BUILD_EXAMPLES)
     add_subdirectory(examples)
 endif()

Makefile

@@ -0,0 +1,20 @@
+.PHONY: config test default compile clean
+
+BUILDDIR = build
+
+default: test
+
+compile: config
+	cmake --build $(BUILDDIR)
+
+format:
+	git clang-format main
+
+config:
+	cmake -DCMAKE_BUILD_TYPE=Debug -B $(BUILDDIR)
+
+test: compile
+	cd $(BUILDDIR); ctest
+
+clean:
+	$(RM) -r $(BUILDDIR) mkerr olderr