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feat(build): update gnu17->gnu23 and gnu++2b->gnu++26

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Alexey Lapshin
2025-08-04 11:44:23 +07:00
parent 316d744845
commit 4c481c863f
8 changed files with 35 additions and 15 deletions
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4
docs/en/api-guides/cplusplus.rst
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@@ -26,7 +26,7 @@ The following C++ features are supported:
C++ Language Standard
---------------------
By default, ESP-IDF compiles C++ code with C++23 language standard with GNU extensions (``-std=gnu++23``).
By default, ESP-IDF compiles C++ code with C++26 language standard with GNU extensions (``-std=gnu++26``).
To compile the source code of a certain component using a different language standard, set the desired compiler flag in the component's ``CMakeLists.txt`` file:
@@ -182,7 +182,7 @@ Designated Initializers
Many of the ESP-IDF components use :ref:`api_reference_config_structures` as arguments to the initialization functions. ESP-IDF examples written in C routinely use `designated initializers <https://en.cppreference.com/w/c/language/struct_initialization>`_ to fill these structures in a readable and a maintainable way.
C and C++ languages have different rules with regards to the designated initializers. For example, C++23 (currently the default in ESP-IDF) does not support out-of-order designated initialization, nested designated initialization, mixing of designated initializers and regular initializers, and designated initialization of arrays. Therefore, when porting ESP-IDF C examples to C++, some changes to the structure initializers may be necessary. See the `C++ aggregate initialization reference <https://en.cppreference.com/w/cpp/language/aggregate_initialization>`_ for more details.
C and C++ languages have different rules with regards to the designated initializers. For example, C++26 (currently the default in ESP-IDF) does not support out-of-order designated initialization, nested designated initialization, mixing of designated initializers and regular initializers, and designated initialization of arrays. Therefore, when porting ESP-IDF C examples to C++, some changes to the structure initializers may be necessary. See the `C++ aggregate initialization reference <https://en.cppreference.com/w/cpp/language/aggregate_initialization>`_ for more details.
``iostream``