Saving number Output

**Apocalyptic_end** · 01-26-2008

Yeah... I did read it... I'm just a little bit confused

**Elysia** · 01-26-2008

OK, so what parts confused you? Do you think you can elaborate a little?

**Apocalyptic_end** · 01-26-2008

I don't really get it at all, what are indentation levels?

**matsp** · 01-26-2008

A function starts at indentation level 0, then statements inside at level 1, and any control statements (if, while, for, switch, etc) pushes the indentation in one level.

--
Mats

**Elysia** · 01-26-2008

Indentation level means, in the case of indenting with tabs, the number of tabs before your code.
So indentation level 0 means no tabs, level 1 means one tab, level 2 means 2 tabs, etc.
With spaces, one indentation level is a fixed amount of spaces you use to indent. So, let's say we use 4 spaces to indent. Indentation level 0 is 0 spaces, level 1 is 4 spaces, level 2 is 8 spaces, etc.

Makes sense?

**Apocalyptic_end** · 01-26-2008

Yeah ok, but where are my levels inconsistent?

**Elysia** · 01-26-2008

Taking a look at main:

Code:

int main(void)   
{
    
// Indentation level: 0!
char str[10];
srand((unsigned)time(0)); 
ofstream a_file ( "example.txt" );
int random_integer; 

   // Indentation level: 1
   for(int index=0; index<7; index++)
   {
// 11 spaces: 11 / 3 = 9 + 2 = Level 3 + 2 spaces
           random_integer = (rand()&#37;99)+1;
// 8 spaces: 8 / 3 = 6 + 2 = Level 2 + 2 spaces
        if (index) cout << ", ";
        {
           a_file << random_integer;
           cout << random_integer;
        }   
   }
   cout << endl;
   a_file.close();
   mypause();
}

Above is a few of them. Each block = +1 indentation level.

**Apocalyptic_end** · 01-26-2008

What about now?

Code:

#include <stdio.h>
#include <fstream>
#include <iostream>

using namespace std;
void myflush(std::istream& in)
{
    in.clear();
    in.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
void mypause()
{  
    myflush(std::cin);
    std::cin.get();
}
int main(void)   
{
   char str[10];
   srand((unsigned)time(0)); 
   ofstream a_file ( "example.txt" );
   int random_integer; 


   for(int index=0; index<7; index++)
           {
               random_integer = (rand()%99)+1;
               a_file << random_integer;
   if (index) cout << ", ";
        { 
           cout << random_integer;
        }   
   }
   cout << endl;
   a_file.close();
   mypause();
}

**Elysia** · 01-26-2008

No, really. Knowing indentation levels, I think you should re-read the indentation wiki faqs. At least the second. There are some rules to indentation, but you don't seem to grasp them.

**Apocalyptic_end** · 01-26-2008

No I get it, I made a mistake by thinking that each level was 4 spaces, not 3, Let me try it again. I also presume by you putting a "!" after the level 0 indentation, I should make it a level 1 indentation, am I correct?

**Apocalyptic_end** · 01-26-2008

Here is my code, each level consists of 3 spaces:

Code:

#include <stdio.h>
#include <fstream>
#include <iostream>

  using namespace std;
void myflush(std::istream& in)
{
  in.clear();
  in.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
void mypause()
{  
  myflush(std::cin);
  std::cin.get();
}
int main(void)   
{
  char str[10];
  srand((unsigned)time(0)); 
  ofstream a_file ( "example.txt" );
  int random_integer; 
  for(int index=0; index<7; index++)
     {
        random_integer = (rand()%99)+1;
        a_file << random_integer;
  if (index) cout << ", ";
     { 
        cout << random_integer;
     }   
  }
     cout << endl;
     a_file.close();
     mypause();
}

By the way, is indenting necessarily needed, or just programming etiquette?

**Elysia** · 01-26-2008

Originally Posted by Apocalyptic_end

By the way, is indenting necessarily needed, or just programming etiquette?

Indentation is necessary so that you and others can easily read your code and to catch silly bugs such as code placed where it shouldn't be and missing brackets.
Bracket placements seem a little off. Take a look again at rule 2: http://cpwiki.sourceforge.net/User:E...ntation#Rule_2
Indentation levels are still not quite there. Sometimes you use two spaces and sometimes 3. Try reading rule 1: http://cpwiki.sourceforge.net/User:E...ntation#Rule_1
I would also like you to explain to me why the if statement only has two spaces preceding it (making it, what seems, level 1)?

**tabstop** · 01-26-2008

Originally Posted by Apocalyptic_end

Here is my code, each level consists of 3 spaces:

Code:

#include <stdio.h>
#include <fstream>
#include <iostream>

using namespace st;
void myflush(std::istream& in)
{
   in.clear();
   in.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
}
void mypause()
{  
   myflush(std::cin);
   std::cin.get();
}
int main(void)   
{
   char str[10];
   srand((unsigned)time(0)); 
   ofstream a_file ( "example.txt" );
   int random_integer; 
   for(int index=0; index<7; index++)
   {
      random_integer = (rand()%99)+1;
      a_file << random_integer;
      if (index) cout << ", ";
      { 
         cout << random_integer;
      }
   }
   cout << endl;
   a_file.close();
   mypause();
}

By the way, is indenting necessarily needed, or just programming etiquette?

You say three spaces, but you have a lot of two-space levels in there. Elysia just used three-space levels in the comment because the first indentation you did was three spaces. And that for-loop appears to be messing with your mind, as you still haven't gotten close. I have fixed it above, so that you do actually have three-space levels. Compare and learn.

As to needed, the compiling process strips out whitespace (except in strings, etc.), so it will compile the same. Indentation is only needed if you plan to read your program, edit your program, debug your program, or show your program to someone else.

**Apocalyptic_end** · 01-26-2008

Originally Posted by tabstop

You say three spaces, but you have a lot of two-space levels in there. Elysia just used three-space levels in the comment because the first indentation you did was three spaces. And that for-loop appears to be messing with your mind, as you still haven't gotten close. I have fixed it above, so that you do actually have three-space levels. Compare and learn.

As to needed, the compiling process strips out whitespace (except in strings, etc.), so it will compile the same. Indentation is only needed if you plan to read your program, edit your program, debug your program, or show your program to someone else.

Oh well I'm using Dev-C++ and it says it says 13:3 and I know the (Well I thought) the 3 meant 3 spaces. So I guess I was wrong. Thanks for the help.

**Elysia** · 01-26-2008

Can you explain why you put the if at indentation level 1?

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