c++ making coord globally accesible -

just real quicky, feel might basic question, can't wrap head around how make work. i've declared 2 coordinate points in:

int x = (0); int y = (0); coord coord; coord.x = x; coord.y = y; 

they have been declared prior main, need globally accessible further functions within program, getting error messages when trying set coord.x/y, saying declaration has no storage type. can fix this?

int x = (0); int y = (0); coord coord; 

these definitions of global variables, initialisation literal values first two.

coord.x = x; coord.y = y; 

these statements.

you cannot have statements outside of function, need put function e.g. main.

but initialise member fields of instance of class coord use constructor of class:

struct coord {   int x;   int y;   coord(int x, int y)    : x(x), y(y) {   } };  coord p = coord (21, 42); 

but in case wouldn't need constructor @ all, can use structure initialisation:

struct coord {   int x;   int y; }; coord q = {42, 21}; coord p{21, 42}; // universal construction 

but, finally, highly doubt need global variable. should check overall design. (though of above unrelated whether use initialise global or local or member variable)