问如何统计内存分配的数量

EN

#include <stdlib.h>

int numOfHeapAllocations = 0;

void* operator new(size_t size)
{
    numOfHeapAllocations++;
    return malloc(size);
}

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <iostream>
#include <cstdlib>


static char **ms;
using namespace std;

class frag{

    public:
    int xyz;

};

int numsegments(char** segs){
    return strlen((const char*)segs)/sizeof(char*);
}

void randomfunction1(){
    ms[numsegments(ms)]=(char*)malloc(100);
}

void randomfunction2(){
    ms[numsegments(ms)]=(char*)calloc(1,100);
}

void randomfunction3(){
    ms[numsegments(ms)]=(char*)new frag(); //storing class as flat data in memory
    int segct=numsegments(ms); // get segments
    frag* init=(frag*)ms[--segct]; // subtract 1 from segment count before reading
    init->xyz=1; // set variable in class
}

int main(int argc, char *argv[]){
    ms=(char**)calloc(1,1000); //store up to 1000 indexes
    printf("Segments used so far: %d\n",numsegments(ms));
    randomfunction1();
    randomfunction2();
    randomfunction3();
    int total=numsegments(ms);
    printf("Segments used total: %d\n",numsegments(ms));
    int lastsegment=total-1;
    frag* y=(frag*)ms[lastsegment]; //convert to class
    printf("xyz in class = %d\n",y->xyz);
    for (int i=0;i<total;i++){free(ms[i]);} //free all segments
    free(ms);
    return 0;
}