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cxx: gnu++23 -> gnu++2b for clang compatibility, added docs and test

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* Using -std=gnu++2b now for both gcc and clang as clang
  does not recognize gnu++23 yet
* Added a build test app to check the C++ standard in IDF
* Updated english docs to reflect the change to C++23
This commit is contained in:
Jakob Hasse
2023-04-12 10:14:58 +08:00
parent 58fa57af93
commit 2379ee36ab
8 changed files with 44 additions and 12 deletions
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2
components/esp_common/include/esp_macros.h
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@@ -32,7 +32,7 @@ extern "C" {
* - MACRO_ARGS(__VA_ARGS__) if __VA_ARGS__ was not empty
* - MACRO_NO_ARGS() if __VA_ARGS__ was empty
*
* @note In the future, we want to switch to C++20. We also want to become compatible with clang. Hence, we provide two
* @note In the future, we want to become compatible with clang. Hence, we provide two
* versions of the following macros which are using variadic arguments. One is using the GNU extension ##__VA_ARGS__.
* The other is using the C++20 feature __VA_OPT__(,). This allows users to compile their code with standard C++20
* enabled instead of the GNU extension. Below C++20, we haven't found any good alternative to using ##__VA_ARGS__.