自我复习使用
typedef int HPDataType;
typedef struct Heap {
HPDataType* a;
size_t capacity;
size_t size;
}HP;
void kuorong(HP* php, HPDataType x)
{
assert(php);
if (php->capacity == php->size)//判断相等
{
size_t newcapacity = php->capacity == 0 ? 4 : php->capacity * 2;
//为0就赋值4,不为0就乘2
HPDataType* tmp = realloc(php->a, sizeof(HPDataType) * newcapacity);
if (tmp == NULL)
{
pirntf("realloc fail");
exit(-1);
}
php->a = tmp;//将realloc的空间赋值给原数组
php->capacity = newcapacity;//同理
}
}