Datasheet

Usually, there is no need to use both tag and typedef: either can be used in struc-
ture type declarations.
Untagged structure and union members are ignored during initialization.
Note: See also Working with structures.
WORKING WITH STRUCTURES
Structures represent user-defined types. A set of rules regarding the application of
structures is strictly defined.
Assignment
Variables of the same structured type may be assigned one to another by means of
simple assignment operator (=). This will copy the entire contents of the variable to
destination, regardless of the inner complexity of a given structure.
Note that two variables are of the same structured type only if they are both defined
by the same instruction or using the same type identifier. For example:
/* a and b are of the same type: */
struct {int m1, m2;} a, b;
/* But c and d are _not_ of the same type although
their structure descriptions are identical: */
struct {int m1, m2;} c;
struct {int m1, m2;} d;
Size of Structure
The size of the structure in memory can be retrieved by means of the operator
sizeof. It is not necessary that the size of the structure is equal to the sum of its
members’ sizes. It is often greater due to certain limitations of memory storage.
Structures and Functions
A function can return a structure type or a pointer to a structure type:
mystruct func1(void); /* func1() returns a structure */
mystruct *func2(void); /* func2() returns pointer to structure */
A structure can be passed as an argument to a function in the following ways:
void func1(mystruct s;); /* directly */
void func2(mystruct *sptr;); /* via a pointer */
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MIKROELEKTRONIKA - SOFTWARE AND HARDWARE SOLUTIONS FOR EMBEDDED WORLD
Language Reference
mikroC PRO for AVR
CHAPTER 5