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PEP 7: Python 3.11 uses C11 (#2309)

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Victor Stinner 2022-02-25 00:13:06 +01:00 committed by GitHub
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@ -31,13 +31,11 @@ particular rule:
C dialect C dialect
========= =========
* Python versions before 3.6 use ANSI/ISO standard C (the 1989 version * Python 3.11 and newer versions use C11 without `optional features
of the standard). This means (amongst many other things) that all <https://en.wikipedia.org/wiki/C11_%28C_standard_revision%29#Optional_features>`_.
declarations must be at the top of a block (not necessarily at the The public C API should be compatible with C++.
top of function).
* Python versions greater than or equal to 3.6 use C89 with several * Python 3.6 to 3.10 use C89 with several select C99 features:
select C99 features:
- Standard integer types in ``<stdint.h>`` and ``<inttypes.h>``. We - Standard integer types in ``<stdint.h>`` and ``<inttypes.h>``. We
require the fixed width integer types. require the fixed width integer types.
@ -47,8 +45,10 @@ C dialect
- booleans - booleans
- C++-style line comments - C++-style line comments
Future C99 features may be added to this list in the future * Python versions before 3.6 used ANSI/ISO standard C (the 1989 version
depending on compiler support (mostly significantly MSVC). of the standard). This meant (amongst many other things) that all
declarations must be at the top of a block (not necessarily at the
top of function).
* Don't use compiler-specific extensions, such as those of GCC or MSVC * Don't use compiler-specific extensions, such as those of GCC or MSVC
(e.g. don't write multi-line strings without trailing backslashes). (e.g. don't write multi-line strings without trailing backslashes).