fork download
copy 
  1. #include <iostream>
  2.  
  3.  
  4. void receiveByte( uint8_t byte )
  5. {
  6. 	printf( "receiveByte( 0x%02X )\n", byte );
  7.  
  8. 	static const uint8_t header[] = { 0x23, 0x00, 0x18, 0x22 };
  9. 	static uint8_t headerIndex = 0;
  10.  
  11. 	static uint8_t bytes[3];
  12. 	static uint8_t bytesIndex = 0;
  13.  
  14. 	if ( headerIndex != 4 )
  15. 	{
  16. 		if ( byte == header[ headerIndex ] )
  17. 		{
  18. 			if ( ++headerIndex == 4 )
  19. 			{
  20. 				printf( "-> header received\n" );
  21. 			}
  22. 		}
  23. 		else
  24. 		{
  25. 			headerIndex = 0;
  26. 		}
  27. 	}
  28. 	else if ( bytesIndex != 3 )
  29. 	{
  30. 		bytes[ bytesIndex ] = byte;
  31.  
  32. 		if ( ++bytesIndex == 3 )
  33. 		{
  34. 			printf( "-> bytes received\n" );
  35.  
  36. 			for ( uint8_t i = 0; i < 3; i++ )
  37. 			{
  38. 				printf("   bytes[%hhu] = 0x%02X\n", i, bytes[i] );
  39. 			}
  40.  
  41. 			// reset for next data
  42. 			headerIndex = 0;
  43. 			bytesIndex = 0;
  44. 		}
  45. 	}
  46. }
  47.  
  48.  
  49. int main()
  50. {
  51.  
  52. 	// simulate receiving bytes from source
  53.  
  54. 	uint8_t bytes[] = { 0x23, 0xEB, 0x54, 0x23, 0x00, 0x18, 0x22, 0x45, 0x72, 0xAE, 0xA8, 0x23, 0xEB, 0x54, 0x23, 0x00, 0x18, 0x21, 0x99, 0xAA, 0x54, 0x23, 0x00, 0x18, 0x22, 0x11, 0x22, 0x33, 0x23 };
  55.  
  56. 	for (uint8_t i = 0; i < sizeof( bytes ) / sizeof( uint8_t ); i++ )
  57. 	{
  58. 		receiveByte( bytes[i] );
  59. 	}
  60.  
  61. 	return 0;
  62. }
Success #stdin #stdout 0s 5500KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
receiveByte( 0x23 )
receiveByte( 0xEB )
receiveByte( 0x54 )
receiveByte( 0x23 )
receiveByte( 0x00 )
receiveByte( 0x18 )
receiveByte( 0x22 )
-> header received
receiveByte( 0x45 )
receiveByte( 0x72 )
receiveByte( 0xAE )
-> bytes received
   bytes[0] = 0x45
   bytes[1] = 0x72
   bytes[2] = 0xAE
receiveByte( 0xA8 )
receiveByte( 0x23 )
receiveByte( 0xEB )
receiveByte( 0x54 )
receiveByte( 0x23 )
receiveByte( 0x00 )
receiveByte( 0x18 )
receiveByte( 0x21 )
receiveByte( 0x99 )
receiveByte( 0xAA )
receiveByte( 0x54 )
receiveByte( 0x23 )
receiveByte( 0x00 )
receiveByte( 0x18 )
receiveByte( 0x22 )
-> header received
receiveByte( 0x11 )
receiveByte( 0x22 )
receiveByte( 0x33 )
-> bytes received
   bytes[0] = 0x11
   bytes[1] = 0x22
   bytes[2] = 0x33
receiveByte( 0x23 )
https://ideone.com/43uw2o
language:
C++ 4.3.2 (gcc-4.3.2)
created:
2 years ago
visibility:
secret

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!