C Structures & Unions

C structures: aggregate, yet scalar ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Structure declarations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Structure declarations ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Recursively defined structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Recursively defined structures ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],We can’t initialize the owner member at this point, since it hasn’t been declared yet

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Member access . evaluated first: access owner member * evaluated next: dereference pointer to HUMAN . and -> have equal precedence and associate left-to-right

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Memory layout CS 3090: Safety Critical Programming in C id amount num_avail cost currency_type

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Memory layout CS 3090: Safety Critical Programming in C id amount num_avail cost currency_type

Bit fields ,[object Object],[object Object],[object Object],[object Object],[object Object],ch font size ch font size Note: This won’t work on machines with 16-bit int s Bit field members must be int s

Bit fields ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Structures as function arguments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Unions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Access type to determine how to interpret value

Unions ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

C Structures & Unions

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C Structures & Unions