C#

DammyMulero wrote:

Am very new to programming language and I am interested to become C# programmer.

DammyMulero wrote:

How do I write a C# code

uint a = 396 ;
uint b = 398565 ;

uint c = ( a << 20 ) | ( b & 0x0FFFFFu ) ;

byte[] d = new byte [ sizeof(uint) ] ;

for ( int i = 0 ; i < d.Length ; i++ )
{
    d [ i ] = (byte ) ( ( c >> 8 * i ) & 0x0FF ) ;
}

uint e = 0 ;

for ( int i = 0 ; i < d.Length ; i++ )
{
    e |= (uint) ( d [ i ] << 8 * i ) ;
}

uint f = e >> 20 ;
uint g = e & 0x0FFFFFu ;

BitConverter.GetBytes()

BitConverter.ToUInt32()

Luc Pattyn wrote:

what you want

private static unsafe byte[]
ToByteArray
(
    object Value
,
    byte[] Buffer
)
{
    System.Runtime.InteropServices.GCHandle h =
        System.Runtime.InteropServices.GCHandle.Alloc
        ( Value , System.Runtime.InteropServices.GCHandleType.Pinned ) ;
    try
    {
        byte* b = (byte*) h.AddrOfPinnedObject().ToPointer() ;

        for ( int i = 0 ; i < Buffer.Length ; i++ )
        {
            Buffer [ i ] = b [ i ] ;
        }
    }
    finally
    {
        h.Free() ;
    }
    return ( Buffer ) ;
}

uint val1 = 583;
uint val2 = 728439;

const uint shift = 1000000;
uint val1 = 539;
uint val2 = 666666;

// creat a combined value
uint combined = (val1 * shift) + val2;
// restore from the combined value
uint restore_val1 = combined / shift;
uint restore_val2 = combined % shift;

byte[] combined_bin = BitConverter.GetBytes(combined);

stephen.darling wrote:

Val1 = *(unsigned int *)ProdKey;

stephen.darling wrote:

Val1 >>= 1;

stephen.darling wrote:

CheckDigit

Val1 = *(unsigned int *)ProdKey;

<pre>uint CheckDigit(uint val)
    {
        uint sum, copy;
        sum = 0;
        copy = val;
        while (copy !=0)
        {
            sum += copy % 10;
            copy /= 10;
        }
        return val * 10 + 7 - (sum % 7);
    }</pre>