The default offsetof() implementation generates a warning (variably modified <variable> at file scope) when used in to define the size of an array. By using this builtin with GCC we avoid the warning and make sure no variable-size arrays are used. Change-Id: Iae215f777241f7daaa061067230086dffaa8311d Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
36 lines
1,023 B
C
36 lines
1,023 B
C
/* stddef.h */
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/*
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* Copyright (c) 2014 Wind River Systems, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __INC_stddef_h__
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#define __INC_stddef_h__
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#include <bits/null.h>
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#include <bits/size_t.h>
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#if !defined(__ptrdiff_t_defined)
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#define __ptrdiff_t_defined
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typedef int ptrdiff_t;
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#endif
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#if defined(__GNUC__)
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#define offsetof(type, member) __builtin_offsetof(type, member)
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#else
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#define offsetof(type, member) ((size_t) (&((type *) NULL)->member))
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#endif
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#endif /* __INC_stddef_h__ */
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