Welcome to the Lounge

typedef struct
{
  int  id;
  char name[20];
} myrecord_t;

myrecord_t * alloc_list(__bound__(0, 10000000) unsigned int size)
{
   /* size > 178956970 on 32-bit ===> overflow */
   return malloc(size * sizeof(myrecord_t));
}

void safecaller(__bound__(1, 100000) unsigned int size)
{
  /* Okay - [1-1000000] with-in [0, 10000000] bounds */
  myrecord_t * list = alloc_list(size);

  /* ... */
}

void badcaller(unsigned int size)
{
  /* Compile ERROR - default (32-bit) unsigned int not with-in [0, 10000000] bounds */
  myrecord_t * list = alloc_list(size);

  /* ... */
}

Early growth = BUD
Key          =    G
That is      =     IE

Bird = BUDGIE