ui512test

ui512test.cpp

#include <iostream>

#include <cstdint>
using namespace std;

#include <boost/multiprecision/cpp_int.hpp>
using namespace boost::multiprecision;

#if 0

union uint512_c
{
    uint512_t t;
    unsigned char c[512/8];
};

void print_ui512(uint512_t num)
{
    uint512_c uc;
    uc.t = num;
    for(int i=0; i < (512/8); i++)
    {
        int byte = uc.c[i];
        printf("%02X", byte);
    }
    printf("\n");
}

#else

void print_ui512(uint512_t num)
{
    unsigned char *cnum = (unsigned char *) &num;
    for(int i=0; i < (512/8); i++)
    {
        int byte = cnum[i];
        printf("%02X", byte);
    }
    printf("\n");
}

#endif

int main()
{
    uint512_t num = 1;

    print_ui512(num);
    cout << hex << setfill('0') << setw(512/8*2) << num << endl;

    return 0;
}