Global structure def's

This is a discussion on Global structure def's within the C Programming forums, part of the General Programming Boards category; For some reason C doesn't like a global structure definition. I have it set up like this: Code: struct EDFSection ...

  1. #1
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    Global structure def's

    For some reason C doesn't like a global structure definition. I have it set up like this:
    Code:
    struct EDFSection
    {
    	char Param[20];
    	int Label, SFactor, SigBits;
    	int Bit30, Bit31;
    } ;
    
    int 
    main (void)
    {
    	
    	EDFSection Sec;
    ........
    Sec.Param = Temp[1];
    		Sec.Label = atoi(Temp[2]);
    		Sec.SFactor = atoi(Temp[3]);
    		Sec.SigBits = atoi(Temp[4]);
    		Sec.Bit31 = atoi(Temp[5]);
    		Sec.Bit30 = atoi(Temp[6]);
    The array Temp contains strings of a fixed length. I tried writing a function to print the structure, as outlined in FAQ > Prelude's Corner > All about structures
    But it won't cooperate.
    Here's the function:
    Code:
    void print_Struct ( struct EDFSection sec )
    {
      printf ( "%s\t", sec.Param);
      printf ( "%d\t", sec.Label );
      printf ( "%d\t", sec.SFactor );
      printf ( "%d\t", sec.SigBits );
      printf ( "%d\t", sec.Bit31);
      printf ( "%d\t", sec.Bit30 );
    }
    Even declaring the structure inside the main function didn't work. What's missing?

  2. #2
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    Sorry forgot. Here's the error message that I get;
    Code:
    : error C2065: 'EDFSection' : undeclared identifier
    H:\Code\Parse EDF\main FN.c(17) : error C2146: syntax error : missing ';' before identifier 'Sec'
    H:\Code\Parse EDF\main FN.c(17) : error C2065: 'Sec' : undeclared identifier
    H:\Code\Parse EDF\main FN.c(56) : error C2224: left of '.Param' must have struct/union type
    H:\Code\Parse EDF\main FN.c(57) : error C2224: left of '.Label' must have struct/union type
    H:\Code\Parse EDF\main FN.c(58) : error C2224: left of '.SFactor' must have struct/union type
    and the same for each time I use Sec. ...

  3. #3
    Just Lurking Dave_Sinkula's Avatar
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    In C, use the struct keyword.
    Code:
     struct EDFSection Sec;
    [edit]If this is related to your previous thread, you can use %d with sscanf and avoid the atoi.
    Last edited by Dave_Sinkula; 06-14-2005 at 08:50 AM.
    7. It is easier to write an incorrect program than understand a correct one.
    40. There are two ways to write error-free programs; only the third one works.*

  4. #4
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    Thanks, that works. Obviously; why would you tell me something that won't work .

    A.

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