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104f811e67
This unifies all the EC header files to use __CROS_EC_FILENAME_H as the include guard. Well, except for test/ util/ and extra/ which use __TEST_ __UTIL_ and __EXTRA_ prefixes respectively. BUG=chromium:496895 BRANCH=none TEST=make buildall -j Signed-off-by: Bill Richardson <wfrichar@chromium.org> Change-Id: Iea71b3a08bdec94a11239de810a2b2e152b15029 Reviewed-on: https://chromium-review.googlesource.com/278121 Reviewed-by: Randall Spangler <rspangler@chromium.org>
27 lines
834 B
C
27 lines
834 B
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Handy clever tricks */
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#ifndef __CROS_EC_COMPILE_TIME_MACROS_H
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#define __CROS_EC_COMPILE_TIME_MACROS_H
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/* Test an important condition at compile time, not run time */
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#define _BA1_(cond, line) \
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extern int __build_assertion_ ## line[1 - 2*!(cond)] \
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__attribute__ ((unused))
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#define _BA0_(c, x) _BA1_(c, x)
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#define BUILD_ASSERT(cond) _BA0_(cond, __LINE__)
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/* Number of elements in an array */
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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/* Just in case - http://gcc.gnu.org/onlinedocs/gcc/Offsetof.html */
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#ifndef offsetof
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#define offsetof(type, member) __builtin_offsetof(type, member)
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#endif
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#endif /* __CROS_EC_COMPILE_TIME_MACROS_H */
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