C / C++ / MFC

shivapriyak wrote:

ut_math_e.cpp

shivapriyak wrote:

this is the definition of ut_asin in a file called as ut_math_e.cpp

shivapriyak wrote:

I have a declaration as:
double ut_asin( double a );
whose definition is given in math.h

KarstenK wrote:

I think you got to include the lib, I guess the "math.lib" in your project settings.

vgandhi wrote:

In this case I want to take the encrypted data pBufPtr and display it as a string to the user. So any suggestions on how I can convert the pBufPtr into a decimal number or string that can be displayed to the user for typing purposes.

Also the decimal or string value obtained by converting the pBufPtr needs to be converted back into the encrypted data for the response side of the application

::sprintf( "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
    btaEncData[ 0 ], btaEncData[ 1 ], btaEncData[ 2 ], btaEncData[ 3 ], 
    btaEncData[ 4 ], btaEncData[ 5 ], btaEncData[ 6 ], 
    btaEncData[ 7 ], btaEncData[ 8 ], btaEncData[ 9 ] );
 
// ....
 
::sscanf( cpHexData, "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
    &btaEncData[ 0 ], &btaEncData[ 1 ], &btaEncData[ 2 ], &btaEncData[ 3 ], 
    &btaEncData[ 4 ], &btaEncData[ 5 ], &btaEncData[ 6 ], 
    &btaEncData[ 7 ], &btaEncData[ 8 ], &btaEncData[ 9 ] );

ultoa( 0xFFFFFFFF, caBuffer, 10 ); // = "<code>4294967295</code>"
ultoa( 0xFFFFFFFF, caBuffer, 16 ); // = "<code>ffffffff</code>"
ultoa( 0xFFFFFFFF, caBuffer, 36 ); // = "<code>1z141z3</code>"

vgandhi wrote:

Now how would I conver the 429496... number back into the original caBuffer form after making the above call.

TCHAR   caBuffer[ 32 + 1 ];
BYTE    btaBinary[] = { 0x00, 0x04, 0xE4, 0xF0 };
BYTE    btaBinary2[] = { 'A', 'b', '1', '2' };
BYTE    btaBinary3[] = { 0xFF, 0xFF, 0xFF, 0xFF };

::_ultot( *(DWORD*)btaBinary, caBuffer, 36 );
::_ultot( *(DWORD*)btaBinary2, caBuffer, 36 );
::_ultot( *(DWORD*)btaBinary3, caBuffer, 36 );