can't understand error message.

This is a discussion on can't understand error message. within the C Programming forums, part of the General Programming Boards category; it is for embedded smart card system.. i'm using smartdeck c compiler.. well i did some mistake at the declaration ...

  1. #16
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    it is for embedded smart card system..

    i'm using smartdeck c compiler..

    well i did some mistake at the declaration part but i have correct it this is te example for the declaration :

    Code:
    typedef struct message
    {
    	unsigned char msg_asal[6];
    	unsigned char msg2[2];
    	unsigned char check[4];
    	unsigned long sum;
    } apdu_data3;
    
    #pragma melpublic
    //unsigned char publicData[136];
    union
    {
                    apdu_data pData;
    	apdu_data2 pData2;
    	apdu_data3 msg;
                    unsigned char pEncdata[16];
    	unsigned char pkeysat[CLkeysat-1];
    	unsigned int pKira1[1];
    	unsigned int pKira2[1];
     } apdu_group1;
    and this is the line where i implement the checksum library :

    Code:
    memcpy(apdu_group1.msg.msg2, apdu_group1.msg.msg_asal, 2);
    memcpy(apdu_group1.msg.check, apdu_group1.msg.msg_asal+2, 4);
    
    CHECKSUM(2, apdu_group1.msg.msg2, apdu_group1.msg.sum);     //line 157
    Last edited by nurulhafiz; 09-13-2006 at 02:53 AM.

  2. #17
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    when i compiled it, i got an error like this one:

    enc1.c(157): error E8002: user type check error: found 'unsigned long', expected 'unsigned long *'

    and when i convert the unsigned long sum; to unsigned long *sum; in the declaration part i got this error:

    enc1.c(157): error E8000: argumenst to _code can only be locals, arguments, globals, or integer

  3. #18
    and the hat of int overfl Salem's Avatar
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    > found 'unsigned long', expected 'unsigned long *'
    Like I said, you should have done
    Code:
    CHECKSUM(2, apdu_group1.msg.msg2, &apdu_group1.msg.sum);
    Do you have any other example which works?
    Have you tried this with variables which are not in a union?
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
    I support http://www.ukip.org/ as the first necessary step to a free Europe.

  4. #19
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    ooo..it works..thnx alot Salem..i didn't understand what u mean back then..i forgot that when ever we want to send address we should include the '&' infront of the var name..thnx again..about the example i don't have any..coz im new in this thing..

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