Thread: About character.

Originally Posted by unknownC

Is it possible to ask the program to read the line after a character?

Of course, reject everything before and that character.

Originally Posted by unknownC

I am trying really hard.

Yeah, so I see...

Anyway, the idea to keep getting characters, and rejecting them, until you run onto the desired terminating symbol( in your case "*" ). Then all you'll have to do is read the rest in a buffer or something.

Well if you logically think about it for a second what do you actually want to do? If I am interpreting right you want to read the lines after the character then you are going to need a loop with a check. Read all the lines and throw them away until you hit the character, make the check true and read the following until EOF or whatever input method you are using.

How about

Code:

char buff[BUFSIZ];
while ( fgets( buff, BUFSIZ, Matrix ) != NULL ) {
  if ( buff[0] == '*' ) {
    // do something, 
  } else {
    // do something with 3 numbers in buff
  }
}

Or as you were,

Code:

while ( (c=fgetc(Matrix)) != EOF ) {
  if ( c == '*' ) {
    // do something, 
  } else if ( c == '\n' ) {
    // do something, 
  } else {
    // do something, 
  }
}

So post something which looks like what you're trying to do.
Say just the "read" and "print" a matrix code, and leave out all the matrix math code you've worked on.

Nobody learns from a 1:1 email/chat session, and there's no way for you to really know whether the person helping you knows what they're talking about.
Open forums are both more responsive (you're not waiting for one person), and self-correcting (any mistake is likely to get pounced on).

Posting your genuine answer is seldom a problem, since you can always prove "I posted it first, therefore you must have copied mine" if it comes down to it.



On the other hand, if you've just found your code on the web and are trying to get us to fix it for you by proxy, then we're likely to find out sooner or later, and that will be the end of it.

Put into words what you want to do. Then break those words down into the simplest steps you can. Then think about how to turn those simple steps into code.

"I want to read lines from a file and when I run into the pattern that is just stars, I want to ... do whatever."

I need to read a line from a file.
I need to compare what I have read to what I want to find.
I need to do something based on what I find.

Keep working at breaking each step down into smaller steps until you can do the final step in words:

Code:

while not at the end of the file
    read one line and store it
    if what i read is something
        do something
    else
        do something else

Now come back when you've done all that.


Quzah.