28-01-2003 15:57									#1
	help with a C program (very basic). Browse Apolyton AD-FREE

If any of you are on that can help, please respond. time is of the essance!!!

	28-01-2003 15:58									#2
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What do you need to know?

	28-01-2003 16:13									#3
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quote: #include #define NUM_COLUMNS 80 main() { int maxChars = 9999; char newLine[maxChars]; char data [maxChars]; int c=0, i=0, y=0, x=0, z=0, numChars=0, done=0, numSpaces=0 ; int beginOfLine, temp; while ((c = getchar()) != EOF) { if (c == '\t') c = ' '; data [x] = c; ++numChars; ++x; } if (numChars > NUM_COLUMNS) for (i=NUM_COLUMNS-1; i <= numChars; i += NUM_COLUMNS) { numSpaces=0; y = i; while(data[y] != ' ') y--; data [y] = '\n'; // ************************************************** *******everything works above here /* numSpaces = NUM_COLUMNS - y; beginOfLine = i-NUM_COLUMNS+1; for (z = beginOfLine; z < beginOfLine + NUM_COLUMNS+1; z++) { c=0; newLine[c]=data[z]; while(numSpaces >=0) { /* c=0; newLine[c]=data[z]; */ if (newLine[c]==' ') { temp=data[z+1]; newLine[c+1]=' '; newLine[c+2]=temp; c+=3; z++; numSpaces--; } else { c++; z++; } } printf("\n%s\n", newLine); */ } } printf("\n%s\n", data); }

what i am trying to do is take input, from a file, or command line, break it off at 80 columns (if that is in the middle of a word, then i go back to the first space, and switch it for a new line char.

Then (and this is the part that doesn't work) i'm tring to justify each line to 80 chars by doubling the white spaces.

And that is where i have my problem...

	28-01-2003 16:19									#4
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I look into it, hold on

	28-01-2003 16:30									#5
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one error in that code...the last close comment should be one bracker lower. Also, if you need a sample file, and a working version of the program, i can send it to you.

	28-01-2003 16:32									#6
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another mistake i made. I need to add the spaces before i'm adding the /n chars...

	28-01-2003 16:35									#7
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I had a hard time to get it even compiling, due to the mistake in the comments and the commented out {}'s. Yes, send me a sample file to "sirralph at gmx dot com". I'm away for 30 minutes now and will look into it after I return. I hope that's ok with you, I'm at work.

	28-01-2003 16:35									#8
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nevermind, it should work the way it is...

	28-01-2003 16:40									#9
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As you wish. Btw: This can't work:

int maxChars = 9999;
char newLine[maxChars];
char data [maxChars];

You can't declare arrays in C with variable sizes. If you want to do this, you have to allocate it dynamically:

In plain C:

int maxChars = 9999;

char* newLine = (char*)malloc(maxChars);
char* data = (char*)malloc(maxChars);

...

free(data);
free(newLine);


or in C++:

int maxChars = 9999;

char* newLine = new char[maxChars];
char* data = new char[maxChars];

...

delete data;
delete newLine;

	28-01-2003 17:08									#10
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oh no, i know it doesn't work, i was just talking about the logic of it. i'll send you the samples...

	28-01-2003 17:08									#11
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i appreciate your help!!!

	28-01-2003 17:16									#12
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Kaak: I'm back. You sent me gcc compiled binary. What about the source?

	28-01-2003 17:28									#13
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that is program she let us use to see how it was supposed to work. I don't have the source for it...I'll send you what i have

	28-01-2003 17:59									#14
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Well, I found 2 bugs so far, both the same thing:

You have in the second half of the program two loops with a position variable c. First mistake, in both loops c is set to 0 in every run of the loop. That is most likely incorrect. Place the two "c = 0;" lines before the for and while lines.

Second, in the first of these loops, c is never counted up, thus always replacing the 0th character of newLine. I think, the corrected statement in the first loop should be "newLine[c++] = data[z];".

It still doesn't work entirely, but at least better. May be this helps you to hunt the rest of the errors down. I must work a bit for my money and will look into this thread again later.

	28-01-2003 18:00									#15
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lol...thanks again

	28-01-2003 20:03									#16
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Ahem, you have the nested comments compatibility turn on?

	28-01-2003 22:26									#17
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that is where the problem is

	29-01-2003 05:21									#18
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#include
#define NUM_COLUMNS 80

what is incude? (i'm JAVA programmer you know )

I think your problem is that you do in C problems that could be more easily solved in JAVA.
I newer used (char*)malloc(maxChars);

Last edited by raghar on 29-01-2003 at 05:55

	29-01-2003 12:19									#19
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i have to do java programs too

	29-01-2003 12:39									#20
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C or Basic? Which is it?

	29-01-2003 12:39									#21
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Java is much nicer than C.

	29-01-2003 12:40									#22
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This thread sucks.

	29-01-2003 20:28									#23
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Basic is the Micro$oft bullshit program code. Is great if you like type 45 chars for a stupid command in place of 3 in C.