offsetof(3C) Standard C Library Functions offsetof(3C) NAME offsetof - offset of structure member SYNOPSIS #include <stddef.h> size_t offsetof(type, member-designator); DESCRIPTION The offsetof() macro defined in <stddef.h> expands to an integral con‐ stant expression that has type size_t. The value of this expression is the offset in bytes to the structure member (designated by member-des‐ ignator) from the beginning of its structure (designated by type). ATTRIBUTES See attributes(5) for descriptions of the following attributes: ┌─────────────────────────────┬─────────────────────────────┐ │ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │ ├─────────────────────────────┼─────────────────────────────┤ │MT-Level │MT-Safe │ └─────────────────────────────┴─────────────────────────────┘ SEE ALSO attributes(5) SunOS 5.10 29 Dec 1996 offsetof(3C)[top]
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