Thread: Problem: far to near copy, and vice versa

  1. #1
    Registered User
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    Problem: far to near copy, and vice versa

    Could someone tell me what is wrong with this?

    Code:
    static byte	response_string[300];
    	
    static byte far	far_response_string[3500];
    
    
    _fstrncpy( far_response_string, "hi", 3 );
    
    response_string[0] = far_response_string[1];
    
    goto_lcd(0,1);
    sprintf( _temps, "%c", response_string[0] );
    puts_lcd( _temps );
    What i get on the lcd is nothing (null)

    I have a feeling that the
    Code:
    response_string[0] = far_response_string[1];
    line is copying it as a null.

    I've tried casting the far_response_string[0] to a (byte) also but with the same problem, the scary thing is that the compiler doesn't complain. I would have expected a suspicious pointer conversion warning if it was a casting issue.

  2. #2
    and the hat of int overfl Salem's Avatar
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    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
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