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Gistrec

Hex представление числа

Nov 29th, 2018
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C++ 0.44 KB | None | 0 0
  1. #include <iostream>
  2. #include  <iomanip>
  3.  
  4. /**
  5.  * Функция выводит hex-представление числа var
  6.  * Пример:
  7.  * var = 123213.0
  8.  * Вывод: 40fe14d000000000
  9.  */
  10. int main() {
  11.     double var = 123213.0;
  12.  
  13.     for (int i = sizeof(var) - 1; i >= 0; i--) {
  14.         std::cout << std::setfill('0') << std::setw(2) << std::hex << (int) *((unsigned char*)&var  + i);
  15.     }
  16.    
  17.     system("pause");
  18.     return 0;
  19. }
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