iox-#2066 Switch to C++17

.bazelrc

@@ -1,4 +1,4 @@
-build --cxxopt="-std=c++14"
+build --cxxopt="-std=c++17"
 
 # For using clang
 build:clang --action_env=BAZEL_COMPILER=clang

.clang-tidy

@@ -98,7 +98,7 @@ hicpp-*,
 #        void bar(Foo& foo) {...}
 #
 # * rule: readability-use-anyofallof
-#   justification: requires C++20 and std::ranges but we only use C++14
+#   justification: requires C++20 and std::ranges but we only use C++17
 #
 # * rule: cppcoreguidelines-non-private-member-variables-in-classes
 #   justification: Sometimes it makes sense to have protected members to extend the base class.

CONTRIBUTING.md

@@ -104,7 +104,7 @@ codebase follows these rules, things are work in progress.
     without heap)
 2) **No exceptions are allowed**, all function and methods need to have `noexcept` in their signature
 3) **No undefined behavior**, zero-cost abstract is not feasible in high safety environments
-4) **Use C++14**
+4) **Use C++17**
 5) **[Rule of Five](https://en.cppreference.com/w/cpp/language/rule_of_three)**, if there is a non-default
     destructor needed, the rule of five has to be applied
 6) **Keep the [STL](https://en.wikipedia.org/wiki/Standard_Template_Library) dependencies to a minimum**,

doc/website/release-notes/iceoryx-unreleased.md

@@ -51,6 +51,7 @@
 - Extend 'iceperf' with 'WaitSet' [#2003](https://github.com/eclipse-iceoryx/iceoryx/issues/2003)
 - Create iceoryx version header for the C-binding [#1014](https://github.com/eclipse-iceoryx/iceoryx/issues/1014)
 - Create macros to deprecate header and code constructs [#2057](https://github.com/eclipse-iceoryx/iceoryx/issues/2057)
+- Switch to C++17 on all platforms [#2066](https://github.com/eclipse-iceoryx/iceoryx/issues/2066)
 
 **Bugfixes:**
 

iceoryx_dust/test/moduletests/test_cli_command_line_common.hpp

@@ -35,7 +35,7 @@ struct CmdArgs
         contents = std::make_unique<std::vector<std::string>>(arguments);
         for (uint64_t i = 0; i < static_cast<uint64_t>(argc); ++i)
         {
-            argv[i] = const_cast<char*>((*contents)[i].data());
+            argv[i] = (*contents)[i].data();
         }
     }
 

iceoryx_hoofs/README.md

@@ -11,7 +11,7 @@ The following sections have a column labeled `internal` to indicate that the API
 is not stable and can change anytime. You should never rely on it and there is no
 support if it is used and breaks your code after an update.
 
-Some modules contain STL constructs which are not part of the C++14 standard as well as convenience
+Some modules contain STL constructs which are not part of the C++17 standard as well as convenience
 constructs like the `NewType`. Since the classes re-implements some STL constructs,
 the C++ STL coding guidelines are used for all files in this module, to help the user
 to have a painless transition from the official STL types to ours.

iceoryx_platform/linux/IceoryxPlatformSettings.cmake

@@ -14,7 +14,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 
-set_global(VAR ICEORYX_CXX_STANDARD         VALUE 14)
+set_global(VAR ICEORYX_CXX_STANDARD         VALUE 17)
 set_global(VAR ICEORYX_PLATFORM_STRING      VALUE "Linux")
 
 set_global(VAR ICEORYX_C_FLAGS              VALUE )

iceoryx_platform/qnx/IceoryxPlatformSettings.cmake

@@ -15,7 +15,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 set_global(VAR ICEORYX_PLATFORM_STRING      VALUE "QNX")
-set_global(VAR ICEORYX_CXX_STANDARD         VALUE 14)
+set_global(VAR ICEORYX_CXX_STANDARD         VALUE 17)
 
 set_global(VAR ICEORYX_C_FLAGS              VALUE )
 set_global(VAR ICEORYX_CXX_FLAGS            VALUE )

iceoryx_posh/test/CMakeLists.txt

@@ -57,7 +57,7 @@ iox_add_executable( TARGET                  ${PROJECT_PREFIX}_moduletests
                     INCLUDE_DIRECTORIES     .
                                             ${CMAKE_BINARY_DIR}/generated
                     LIBS                    ${TEST_LINK_LIBS}
-                    LIBS_LINUX              dl
+                    LIBS_LINUX              dl stdc++fs
                     STACK_SIZE              ${ICEORYX_POSH_TEST_STACK_SIZE}
                     FILES
                         ${MODULETESTS_SRC}

iceoryx_posh/test/integrationtests/test_popo_port_user_building_blocks.cpp

@@ -206,7 +206,7 @@ class PortUser_IntegrationTest : public Test
         static_cast<void>(subscriberPortRouDi.dispatchCaProMessageAndGetPossibleResponse(caproMessage));
 
         // Subscription done and ready to receive samples
-        while (!finished)
+        while (!finished || subscriberPortUser.hasNewChunks())
         {
             // Try to receive chunk
             subscriberPortUser.tryGetChunk()

iceoryx_posh/test/moduletests/test_popo_toml_gateway_config_parser.cpp

@@ -26,9 +26,7 @@
 #include <cpptoml.h>
 #include <limits> // workaround for missing include in cpptoml.h
 
-#if __cplusplus >= 201703L
 #include <filesystem>
-#endif
 
 #include <fstream>
 #include <string>
@@ -54,9 +52,6 @@ TEST_F(TomlGatewayConfigParserTest, ParsingFileIsSuccessful)
 {
     ::testing::Test::RecordProperty("TEST_ID", "78b50f73-f17f-45e2-a091-aaad6c536c3a");
 
-#if __cplusplus < 201703L
-    GTEST_SKIP() << "The test uses std::filesystem which is only available with C++17";
-#else
     auto tempFilePath = std::filesystem::temp_directory_path();
     tempFilePath.append("test_gateway_config.toml");
 
@@ -69,15 +64,14 @@ TEST_F(TomlGatewayConfigParserTest, ParsingFileIsSuccessful)
     )";
     tempFile.close();
 
-    iox::roudi::ConfigFilePathString_t configFilePath{iox::TruncateToCapacity, tempFilePath.c_str()};
+    iox::roudi::ConfigFilePathString_t configFilePath{iox::TruncateToCapacity, tempFilePath.u8string().c_str()};
 
     TomlGatewayConfigParser::parse(configFilePath)
         .and_then([](const auto&) { GTEST_SUCCEED() << "We got a config!"; })
         .or_else([](const auto& error) {
             GTEST_FAIL() << "Expected a config but got error: "
                          << iox::config::TOML_GATEWAY_CONFIG_FILE_PARSE_ERROR_STRINGS[static_cast<uint64_t>(error)];
         });
-#endif
 }
 
 class TomlGatewayConfigParserSuiteTest : public TestWithParam<CheckCharactersValidity_t>

tools/ci/build-test-windows.ps1

@@ -34,7 +34,7 @@ if ($?) { build\hoofs\test\Debug\hoofs_moduletests.exe --gtest_filter="-*TimingT
 if ($?) { build\hoofs\test\Debug\hoofs_mocktests.exe }
 if ($?) { build\hoofs\test\Debug\hoofs_integrationtests.exe }
 if ($?) { build\binding_c\test\Debug\binding_c_moduletests.exe --gtest_filter="-BindingC_Runtime_test.RuntimeNameLengthIsOutOfLimit:BindingC_Runtime_test.RuntimeNameIsNullptr:*TimingTest*" }
-if ($?) { build\posh\test\Debug\posh_moduletests.exe --gtest_filter="-ChunkHeader_test.ChunkHeaderBinaryCompatibilityCheck:TomlGatewayConfigParserSuiteTest*:IceoryxRoudiApp_test.ConstructorCalledWithArgUniqueIdTwoTimesReturnError:IceoryxRoudiApp_test.ConstructorCalledWithArgVersionSetRunVariableToFalse:ValidTest*:ParseAllMalformedInput*:*TimingTest*:MePooSegment_test.SharedMemoryFileHandleRightsAfterConstructor" }
+if ($?) { build\posh\test\Debug\posh_moduletests.exe --gtest_filter="-ChunkHeader_test.ChunkHeaderBinaryCompatibilityCheck:TomlGatewayConfigParser*:IceoryxRoudiApp_test.ConstructorCalledWithArgUniqueIdTwoTimesReturnError:IceoryxRoudiApp_test.ConstructorCalledWithArgVersionSetRunVariableToFalse:ValidTest*:ParseAllMalformedInput*:*TimingTest*:MePooSegment_test.SharedMemoryFileHandleRightsAfterConstructor" }
 if ($?) { build\posh\test\Debug\posh_integrationtests.exe --gtest_filter="-ChunkBuildingBlocks_IntegrationTest.TwoHopsThreeThreadsNoSoFi:*TimingTest*" }
 
 exit $LASTEXITCODE