MemCheck1.cpp

MemCheck1.cpp

#include <windows.h>
#include <vector>
#include <iostream>

int main(void)
{
    MEMORYSTATUS ms1, ms2;
    {
        std::vector<DWORDLONG> vec(0xFFFFFF, 1);

        for (int i = 0; i < 0xFFFFFF; i += 0x100)
            vec[i] = char(i);

        ms1.dwLength = sizeof(ms1);
        GlobalMemoryStatus(&ms1);
    }

#define POUT(x) std::cout << #x ": " << x << std::endl;

    ms2.dwLength = sizeof(ms2);
    GlobalMemoryStatus(&ms2);

    POUT(ms1.dwMemoryLoad - ms2.dwMemoryLoad);
    POUT(ms1.dwTotalPhys - ms2.dwTotalPhys);
    POUT(ms1.dwAvailPhys - ms2.dwAvailPhys);
    POUT(ms1.dwTotalPageFile - ms2.dwTotalPageFile);
    POUT(ms1.dwAvailPageFile - ms2.dwAvailPageFile);
    POUT(ms1.dwTotalVirtual - ms2.dwTotalVirtual);
    POUT(ms1.dwAvailVirtual - ms2.dwAvailVirtual);

    return 0;
}

// OUTPUT:
// C:\Users\katahiromz\Desktop\MemCheck>MemCheck1
// ms1.dwMemoryLoad - ms2.dwMemoryLoad: 3
// ms1.dwTotalPhys - ms2.dwTotalPhys: 0
// ms1.dwAvailPhys - ms2.dwAvailPhys: 4170416128
// ms1.dwTotalPageFile - ms2.dwTotalPageFile: 0
// ms1.dwAvailPageFile - ms2.dwAvailPageFile: 0
// ms1.dwTotalVirtual - ms2.dwTotalVirtual: 0
// ms1.dwAvailVirtual - ms2.dwAvailVirtual: 4160749568