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  1. #include <iostream>
  2. #include <iomanip>
  3.  
  4. int main() {
  5. 	signed char arr[2] = {0, - 64};
  6.     unsigned int value;
  7.  
  8.     value = arr[0];
  9.     value = value << 8;
  10.     value += arr[1];
  11.     std::cout << std::hex << std::setw(8) << std::setfill('0') << value << " = " << std::dec << value << std::endl;
  12.  
  13.     value = (unsigned int) arr[0];
  14.     value = value << 8;
  15.     value += (unsigned int) arr[1];
  16.    std::cout << std::hex << std::setw(8) << std::setfill('0') << value << " = " << std::dec << value << std::endl;
  17.  
  18.     value = (unsigned char) arr[0];
  19.     value = value << 8;
  20.     value += (unsigned char) arr[1];
  21.     std::cout << std::hex << std::setw(8) << std::setfill('0') << value << " = "  << std::dec << value << std::endl;
  22.  
  23. 	return 0;
  24. }
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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ffffffc0 = 4294967232
ffffffc0 = 4294967232
000000c0 = 192
https://ideone.com/2MVs0q
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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