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Date:	Sun, 10 Feb 2002 09:34:46 PST7
From:	Harry Chris Motin <hmotin@attglobal.net >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: Mofe WATCOM Fun

Content Type: text/plain

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Thanks, Steven. Your instructions work! Next question, if you would.
Below, please find a simple source code in which I created a structure
called "TEST" and declared and initialized one instance of it (MyTest).
Now, I'm having trouble accessing member elements within this structure
instance to change their values. I've looked at the Watcom documentation
and, in lines 17-19, tried to implement what it says (for clarity I've
shown some of the line numbers in the source code as "#:" on the left
side of the line). I also tried what my SAMS "Teach Yourself C in 21
Days" book says (line 20 of the source code). However, the compiler
gives me an error either way (see error logfile output, below). Any
suggestions for this problem?? Thanks for your help.

Test.c source code:
_____________________________________________________________________________________
1:/*Begin include statements*/
2:#include
3:#include
4:/*End include statements*/

/*Begin variable declarations*/
8:FILE *fp;
9:char *ReadFileName = "C:\\LaTeX\\Academic_Press\\doi.html";
10:char *Mode = "rt";
11:char *FileName;
12:typedef struct {
13: int AnyNumber;
14: char LastName[256];
15:} TEST;
16:TEST MyTest = {29,"Motin"};
17:TEST *p_MyTest;
18:p_MyTest = &MyTest;
19:(*p_MyTest).AnyNumber = 30;
20:MyTest.AnyNumber = 30;
21:TEST *FILEREAD(char *FileName); /*Profile for the FILEREAD utility
function*/

/*struct fread ReturnResult;*/
/*ReturnResult.FileOpenRC = 3;*/

/*End variable declarations*/

main()
{
if( (fp = fopen(ReadFileName, Mode)) != NULL )
{
printf("\n The file, %s, has been opened.", ReadFileName);
fclose(fp);
}
else
printf("\n The file, %s, cannot be opened.", ReadFileName);
return(0);
}
_____________________________________________________________________________________

error logfile output:
_____________________________________________________________________________________
test.c(18): Error! E1129: Type does not agree with previous definition
of 'p_MyTest'
test.c(18): Warning! W102: Type mismatch (warning)
test.c(19): Error! E1129: Type does not agree with previous definition
of 'p_MyTest'
test.c(19): Error! E1009: Expecting ';' but found '.'
test.c(19): Error! E1061: Expecting data or function declaration, but
found '.'
test.c(20): Error! E1129: Type does not agree with previous definition
of 'MyTest'
test.c(20): Error! E1009: Expecting ';' but found '.'
test.c(20): Error! E1061: Expecting data or function declaration, but
found '.'
test.c(20): Error! E1068: Variable 'AnyNumber' already initialized

HCMotin
_____________________________________________________________________________________

Steven Levine wrote:
>
> =====================================================
> If you are responding to someone asking for help who
> may not be a member of this list, be sure to use the
> REPLY TO ALL feature of your email program.
> =====================================================
>
> In <3C65D191.54A991DB@attglobal.net>, on 02/09/02
> at 05:49 PM, Harry Chris Motin said:
>
> >char ReadFileName;
> >ReadFileName = "Harry";
>
> This should be either:
>
> char *ReadFileName = "Harry"; // Pointer to character initialize to
> point to a string
>
> or
>
> char ReadFileName[] = "Harry"; // Array of 6 characters initialized to
> ...
>
> or
>
> char ReadFileName[20] = "Harry"; // Array of 20 characters initialized
> to ...
>
> depending on exactly how you want to use ReadFileName. The first two
> forms are fine if the string is a constant. The latter is better if you
> are setting a default which you might override.
>
> What you defined was a character, not an array of characters.
>
> >The compiler error message is almost as if Watcom does not accept the
> >"char" keyword as a valid variable declaration. Can anyone help me here?
>
> Not quite:
>
> char aChar = 'a'; // A character initialized to the
> letter a
>
> printf("aChar is set to '%c'\n", aChar);
>
> Does that clarify things?
>
> Steven
>
> --
> ---------------------------------------------------------------------
> "Steven Levine" MR2/ICE 2.31a #10183 Warp4/FP15/14.085_W4
> www.scoug.com irc.webbnet.org #scoug (Wed 7pm PST)
> ---------------------------------------------------------------------
>
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