A struct is the closest thing to a oop object you have in c.
When you pass a pointer to a struct in a c program, you access it by
dereferencing it. a->b :=
(*a).b
from w3 schools
// Create a structure called myStructure
struct myStructure {
int myNum;
char myLetter;
};
int main() {
// Create a structure variable of myStructure called s1
struct myStructure s1;
// Assign values to members of s1
s1.myNum = 13;
s1.myLetter = 'B';
// Print values
printf("My number: %d\n", s1.myNum);
printf("My letter: %c\n", s1.myLetter);
return 0;
}alternatively from st
typedef struct {
int mode;
int type;
int snap;
/*
* Selection variables:
* nb – normalized coordinates of the beginning of the selection
* ne – normalized coordinates of the end of the selection
* ob – original coordinates of the beginning of the selection
* oe – original coordinates of the end of the selection
*/
struct {
int x, y;
} nb, ne, ob, oe;
int alt;
} Selection;
int
main(void)
{
sel.mode = SEL_IDLE;
sel.ob.x = -1;
tsetdirt(sel.nb.y, sel.ne.y);
}A struct is like creating a composite datatype.
look at this example
This code is defining what a Player is and then
initializing a variable with datatype Player, called
cloud