How to assign values to flexible array members

Here’s how to assign values to flexible array members added in c99.

#include <stdio.h>

typedef struct _line {
	int size;
	int data[];
}line;

void funfun(line * abc){
	if(abc->data[0] == 1 ){
		printf("You can't touch this");

	}
	else{
		printf("MC Hammer");
	}

}

To design a test so that the if branch in the code above is true, it is not possible to put a value in the usual test data entry method.
This is because it is a flexible array member.

Therefore, the value should be entered as shown below using the code before the call in the test information tab.

size_t this_length = 5;
abc = (line *)malloc (sizeof (line) + this_length);
abc->data[0] = 1;

!You cannot use the above method in an environment without malloc.