struct memory layout

[joe]

struct {
int x;
int y;
int z;
};

Does the ansi standard say anything about whether field z will be
stored at a higher memory address than x ?

Joe

 

[Victor Bazarov]

struct {
int x;
int y;
int z;
};

Does the ansi standard say anything about whether field z will be
stored at a higher memory address than x ?

Yes, it does, and yes, it will.

V

 

[EventHelix.com]

struct {
 int x;
 int y;
 int z;

};

Does the ansi standard say anything about whether field z will be
stored at a higher memory address than x ?

Joe

The standard does say that x, y and z will be stored in the specified
order. Padding might be needed between the fields. This is
architecture dependent.

The following article has more details:
http://www.eventhelix.com/RealtimeMantra/ByteAlignmentAndOrdering.htm

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