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  1. #include <iostream>
  2. #include <iomanip>  
  3. #include <cstring>  
  4. using namespace std;
  5.  
  6. typedef struct{
  7. int d;
  8. int e;
  9. int f;
  10. }DEF;
  11.  
  12. typedef struct {
  13. int a;
  14. int b;
  15. DEF c[];
  16. }ABC;
  17.  
  18. struct PdschAppHeader
  19. {
  20.     uint64_t dir : 1;
  21.     uint64_t payloadVer : 3;
  22.     uint64_t channelType : 4;
  23.     uint64_t frameId : 8;
  24.     uint64_t subframeId : 4;
  25.     uint64_t slotId : 6;
  26.     uint64_t symbolId : 6;
  27.     uint64_t rnti : 16;
  28.     uint64_t symbolSize : 16;
  29. };
  30.  
  31. void print_hex(const void* data, size_t size) {  
  32.     const unsigned char* p = reinterpret_cast<const unsigned char*>(data);  
  33.     for (size_t i = 0; i < size; ++i) {  
  34.     	printf("%02x",p[i]);
  35.         // std::cout << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(p[i]);  
  36.     }  
  37.     std::cout << std::endl;  
  38. }
  39.  
  40. int main() {
  41. 	ABC abc;
  42. 	// your code goes here
  43. 	// cout << sizeof(abc) << endl << &abc.b<<endl<<abc.c <<endl;
  44. 	PdschAppHeader pds;
  45. 	memset(&pds, 0, sizeof(pds));
  46. 	pds.slotId = 36;
  47.  
  48. 	print_hex(&pds, sizeof(pds));  
  49. 	cout << pds.slotId << endl;
  50.  
  51. 	return 0;
  52. }
Success #stdin #stdout 0.01s 5268KB
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stdin
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Standard input is empty
stdout
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0000400200000000
36
https://ideone.com/AM6tQM
language:
C++14 (gcc 8.3)
created:
12 days ago
visibility:
public

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