fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void ENA_REG_WRITE8(unsigned char* from, unsigned char* to)
  5. {
  6. 	*to=*from;
  7. }
  8. void ENA_REG_WRITE32(unsigned long* from, unsigned long* to)
  9. {
  10. 	*to=*from;
  11. }
  12.  
  13. int main() {
  14. 	    unsigned char x[5]={11,10,9,8,7};
  15. 	    unsigned char y[5]={};
  16. 	    unsigned char* from_byte = x;
  17. 	    unsigned char* to_byte = y;
  18. 	    unsigned long* from_word = nullptr;
  19. 	    unsigned long* to_word = nullptr;
  20.         long n = 0;
  21.         switch (0 & 0b11) {
  22.         case 3: ENA_REG_WRITE8(from_byte++, to_byte++);
  23.         case 2: ENA_REG_WRITE8(from_byte++, to_byte++);
  24.         case 1: ENA_REG_WRITE8(from_byte++, to_byte++);
  25.         case 0: from_word=(unsigned long*)from_byte; to_word=(unsigned long*)to_byte; while(n --> 0) ENA_REG_WRITE32(from_word++, to_word++);
  26.         }
  27.         for(auto i : y)
  28.         {
  29.         	cout << (unsigned)i << " ";
  30.         }
  31.         return 0;
  32. }
Success #stdin #stdout 0s 3468KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
0 0 0 0 0
https://ideone.com/JpgVOr
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!