INDENTATION

MORE INFORMATION ABOUT INDENTATION IN c++. Enough to write on the topic.
BS111498Asked:
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scrapdogConnect With a Mentor Commented:
Indentation is only meant to make code more readable, it has no effect on the way a program is compiled.  Indentation is used to make it easier to determine where a block of code begins and ends.  If one block of code contains another block of code, it is generally indented two or three spaces away from the block of code containing it.  Also, indentation is used on individual statements, whether they are in a block or not, when these statements belong to other statements such as for or if.

for (i=0; i<10; i++)
  for (j=0; j<10; j++)
    x += y[i,j];
if (x > 100)
  x -= 100;

is much easier to read than:

for (i=0; i<10; i++)
for (j=0; j<10; j++)
x += y[i,j];
if (x > 100)
x -= 100;

however they both do exactly the same thing.  In the first example you know that the second "for" statement is part of the first "for" statement, and the x += y[i,j] belongs to the second for statement.  Also, you know that the "if" statement is not contained within the first or second "for" statements because it is at the same level of indentation as the first "for" statement.  You can also tell that the statement x =- 100 belongs the the if statement by looking at indentation.  In the same example, you can figure it out by looking closely, but it is much easier and visually appealing to use indentation.


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BS111498Author Commented:
Scrapdog I am very grateful for the answer, I have search many textbooks for this subject and only about two lines is included.

The question was " indentation causes confusion"

If you have any reference on this subject, please email it to me
                                           thanks BS


























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