2 Copyright 1988-2022 Free Software Foundation, Inc.
3 This is part of the GCC manual.
4 For copying conditions, see the copyright.rst file.
6 .. _environment-implementation:
11 The behavior of most of these points are dependent on the implementation
12 of the C library, and are not defined by GCC itself.
14 * The mapping between physical source file multibyte characters
15 and the source character set in translation phase 1 (C90, C99 and C11
18 See :ref:`cpp:implementation-defined-behavior`.