计算内存大小
#include<iostream>
#include<malloc.h>
using namespace std;
int main()
{
int*a = (int*)malloc(11 * sizeof(int));
size_t size=_msize(a);
cout<<size / sizeof(int)<<endl;
free(a);
return 0;
}
#include<malloc.h>
using namespace std;
int main()
{
int*a = (int*)malloc(11 * sizeof(int));
size_t size=_msize(a);
cout<<size / sizeof(int)<<endl;
free(a);
return 0;
}