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src/static_assert.h
34 строки
800 B
Eugene Syromyatnikov
sttaic_assert: disable -Wnested-externs when the fallback is used
01 дек 2021, 00:28
01 дек 2021, 00:28
334265f
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/* * Copyright (c) 2018-2021 Dmitry V. Levin <ldv@strace.io> * All rights reserved. * * SPDX-License-Identifier: LGPL-2.1-or-later */ #ifndef STRACE_STATIC_ASSERT_H # define STRACE_STATIC_ASSERT_H # include "assert.h" # if defined HAVE_STATIC_ASSERT || defined static_assert /* static_assert is already available */ # elif defined HAVE__STATIC_ASSERT # undef static_assert # define static_assert _Static_assert # else /* !HAVE_STATIC_ASSERT && !HAVE__STATIC_ASSERT */ /* Otherwise it is impossible to use the fallback inside functions. */ # if defined __GNUC__ # pragma GCC diagnostic ignored "-Wnested-externs" # endif # define static_assert(expr, message) \ extern int (*strace_static_assert(int))[sizeof(int[2 * !!(expr) - 1])] # endif #endif /* !STRACE_STATIC_ASSERT_H */