C / C++ / MFC

kapardhi wrote:

str = "FFDA0890DA"

"FFDA0890DA" is actually an hexadecimal for of data , i need to convert this to an BYTE array

*bArray = {'F','F','D','A','0','8','9','0','D','A'}

std::vector<BYTE> ToBytes( const CString& str )
{
   const int ByteLength = ( str.GetLength() * sizeof( TCHAR )) + 1;
   std::vector<BYTE> Bytes(ByteLength);
   memcpy_s( &Bytes[0], ByteLength, static_cast<lpctstr>( str ), ByteLength );

   return Bytes;
}</lpctstr>

// Invoke
std::vector<BYTE> Bytes = ToBytes( CString( _T( "Nibu in bytes :P" )));

1. BYTE b[] = {'F','F','D','A','0','8','9','0','D','A'};
or


2. BYTE b[] = { 0xFF, 0xDA, 0x08, 0x90, 0xDA };<br />

kapardhi wrote:

sorry i have shown in a wrong way previously i actually need in following manner
BYTE b[] = { 0xFF, 0xDA, 0x08, 0x90, 0xDA };

std::vector<BYTE> CStringBytes_To_RealBytes( const CString& str )
{
   const LPCTSTR pBuff = static_cast<lpctstr>( str );
   const int ByteLength = str.GetLength();

   std::vector<BYTE> Bytes;
   Bytes.reserve( ByteLength );

   for( int Index = 0; Index < ByteLength; Index+=2 )
   {
      TCHAR Temp[3] = { 0 };
      _tcsncpy_s( Temp, 3, &pBuff[Index], 2 );
      Bytes.push_back( static_cast<BYTE>( _tcstol( Temp, NULL, 16 )));
   }

   return Bytes;
}</lpctstr>

std::vector<BYTE> Bytes = CStringBytes_To_RealBytes( CString( _T( "FFDA0890DA" )));

void main()
{
  char * str = "FFDA0890DA";
  int i, size;
  int k;
  BYTE  * b;

  size = strlen(str) / 2;
  b = (BYTE*) malloc(size * sizeof(BYTE));

  for (i=0; i<size;>  {
    sscanf(str+2*i, "%2x",  &k);
    b[i]= (BYTE) k;
  }
  for (i=0; i<size;>  {
    printf("b[%d] = 0x%02X\n",i, b[i]);
  }
  free( b);
}