Question

Whether following structure declaration is right.

typedef struct  { 
int roll; 
int  age ; 
} class[10];

When I do like this , compiler does not say any error.
But, when I assign class[0].age=10,
am getting error. So here class[0] struct variable or structure name..

Thanks

Answer 1

You are defining a type class which is an array of ten structs. To use this type you have to instatiate a variable of that type:

class x;
x[0].age = 10;

Maybe a slightly cleaner way would be to have two separate typedefs:

typedef struct { int roll; int  age; } foo_unit;
typedef foo_unit foo_array[10];

foo_array x;     /* now an array of 10 foo_units. */
foo_unit  y[10]; /* same thing */