Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /usr/share/emscripten/tests/core/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

#include <stdio.h>
#include <stdlib.h>

#include <iostream>
#include <string>
#include <sstream>

typedef unsigned long long quint64;

using namespace std;

inline quint64 qbswap(quint64 source) {
  return 0 | ((source & quint64(0x00000000000000ffLL)) << 56) |
         ((source & quint64(0x000000000000ff00LL)) << 40) |
         ((source & quint64(0x0000000000ff0000LL)) << 24) |
         ((source & quint64(0x00000000ff000000LL)) << 8) |
         ((source & quint64(0x000000ff00000000LL)) >> 8) |
         ((source & quint64(0x0000ff0000000000LL)) >> 24) |
         ((source & quint64(0x00ff000000000000LL)) >> 40) |
         ((source & quint64(0xff00000000000000LL)) >> 56);
}

int main() {
  quint64 v = strtoull("4433ffeeddccbb00", NULL, 16);
  printf("%lld\n", v);

  const string string64bitInt = "4433ffeeddccbb00";
  stringstream s(string64bitInt);
  quint64 int64bitInt = 0;
  printf("1\n");
  s >> hex >> int64bitInt;
  printf("2\n");

  stringstream out;
  out << hex << qbswap(int64bitInt);

  cout << out.str() << endl;
  cout << hex << int64bitInt << endl;
  cout << string64bitInt << endl;

  if (out.str() != "bbccddeeff3344") {
    cout << "Failed!" << endl;
  } else {
    cout << "Succeeded!" << endl;
  }

  return 0;
}