How to change the code using lamda expression?

I'm study about c++ using lamda expression. I'm just tried change the code that already coded using for or while, then i have the question about lamda.

I'm just change the code using lamda or for_each (c++11). How to change?

Here is a code that want to chage.

std::string PointToString(void* p_pData)
{
    char* p = (char*)p_pData;

    short iLength = 0;
    std::memcpy(&iLength, p, sizeof(short));
    p += sizeof(short);

    std::string sRet;
    std::array<char, 3> szB;
    sRet.append("0x");

    for ( short i = 0; i < iLength; i++ )
    {
        sprintf(szB.data(), "%02X", (unsigned char)*(p++));
        sRet.append(szB.data());
    }

    return sRet;
}

This code just convert a memory value to hex code. That function called like this.

char szB[15] = {0x0b, 0x00, 0x00, 0x00, 0xc7, 0xd1, 0xb1, 0xdb, 0xc0, 0xd4, 0xb4, 0xcf, 0xb4, 0xd9, 0x2e};

void* p = nullptr;

p = (void*)szB;

sRet = PointToString(p);

The Result may be 0x0B000000C7D1.....

I want to try lamda in PointToString function. How can I change that function?