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https://github.com/falk-werner/webfuse
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a717248e80
* makes WF_CONTAINER_OF use typeof, if available * convertss WF_CONTAINER_OF to lower case * fixes include guard
22 lines
472 B
C
22 lines
472 B
C
#ifndef WF_CONTAINER_OF_H
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#define WF_CONTAINER_OF_H
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#ifndef __cplusplus
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#include <stddef.h>
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#else
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#include <cstddef>
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#endif
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#ifdef __GNUC__
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#define wf_container_of(pointer, type, member) \
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({ \
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const typeof( ((type *)0)->member ) * __member = (pointer); \
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(type *)( (char *)__member - offsetof(type, member) ); \
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})
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#else
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#define wf_container_of(pointer, type, member) \
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(type *) (((char *) pointer) - offsetof(type, member))
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#endif
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#endif
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