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  1. // Online C++ compiler to run C++ program online
  2. #include <iostream>
  3. #include <stdint.h>
  4.  
  5. template <typename T>
  6. inline float getFloat(T, uint8_t *x)
  7. {
  8. 	T temp;
  9. 	uint8_t *p = &temp;
  10. 	for(uint8_t i = 0; i < sizeof(T); ++i)
  11. 	{
  12. 		*(p+i) = x;
  13. 	}
  14. 	return static_cast<float>(temp);
  15. };
  16.  
  17. union UN
  18. {
  19.     uint16_t u16;
  20.     uint8_t u8[2];
  21.     struct 
  22.     {
  23.         uint8_t b1;
  24.         uint8_t b2;
  25.     };
  26.     void print() { printf("b1=%08b \nb2=%08b \nu16=%016b (%d, 0x%x)", 
  27.     b1, b2, u16, u16, u16); }
  28. };
  29.  
  30. int main() {
  31.     UN un;
  32.     un.b1 = 0x34;
  33.     un.b2 = 0x12;
  34.     un.print();
  35.  
  36.  
  37.     return 0;
  38. }
Success #stdin #stdout 0.01s 5292KB
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stdin
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123
stdout
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b1=%08b 
b2=%08b 
u16=%016b (52, 0x12)
https://ideone.com/bU0zO2
language:
C++ (gcc 8.3)
created:
273 days ago
visibility:
public

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