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offsetof(3C)            LIBRARY FUNCTIONS            offsetof(3C)



NAME
     offsetof - offset of structure member

SYNOPSIS
     #include <stddef.h>

     sizet offsetof (type, member-designator);

DESCRIPTION
     offsetof is a macro defined in stddef.h which expands to  an
     integral constant expression that has type sizet, the value
     of which is the offset in bytes,  to  the  structure  member
     (designated by member-designator), from the beginning of its
     structure (designated by type).









































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