xref: /illumos-gate/usr/src/man/man3c/offsetof.3c (revision a61ed2ce7a86a4d6428f2a83eb4739fae945447e)
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OFFSETOF 3C "Dec 29, 1996"
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 constant expression that has type size_t. The value of this expression is the offset in bytes to the structure member (designated by member-designator) 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)