C语言柔性数组分配内存

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

typedef struct tagNode
{
	size_t len;
	int key[0];
}Node;

int main(int argc, char* argv[])
{
	Node	*node = NULL;
	node = (Node*)malloc(sizeof(Node) + 10*sizeof(int));
	bzero(node, sizeof(Node) + sizeof(int)*10);
	printf("before malloc:%d\n", sizeof(node));
	node->len = 10;
	memset(node->key, 15, sizeof(int)*node->len);
	printf("after malloc:%d\n", sizeof(node));
	int i = 0;
	for(i = 0; i < node->len; ++i)
	{
		printf("\nnode.key[%d]=%d\n", i, node->key[i]);
		int j = 0;
		char* pTmp = (char*)&(node->key[i]);
		for(;j < 4; ++j)
		{
			printf("%d\t", *pTmp++);
		}
	}
	free(node);
	putchar('\n');
	return 0;
}

执行结果