10 lines
296 B
C
10 lines
296 B
C
/* struct.h 4.1 83/05/03 */
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/*
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* access to information relating to the fields of a structure
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*/
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#define fldoff(str, fld) ((int)&(((struct str *)0)->fld))
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#define fldsiz(str, fld) (sizeof(((struct str *)0)->fld))
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#define strbase(str, ptr, fld) ((struct str *)((char *)(ptr)-fldoff(str, fld)))
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