dyn struct prop

#include <stdio.h>
#include <stdlib.h>

typedef struct {
  int x, y;
  char name[30];
} Entity;

typedef struct {
  int num;
  Entity data[];
} flexArrayStruct;

void func() {
  /* Space is allocated for the struct */
  flexArrayStruct *structP= (flexArrayStruct *)malloc(sizeof(flexArrayStruct) + sizeof(Entity));

  structP->num = 1;
}

int main(void) {
  func();
  return 0;
}