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Technical Discussion :: C

# 2. What is the difference between ++var and var++?

The ++ operator is called the increment operator. When the operator is placed before the variable (++var), the variable is incremented by 1 before it is used in the expression. When the operator is placed after the variable (var++), the expression is evaluated, and then the variable is incremented by 1.

The same holds true for the decrement operator (--). When the operator is placed before the variable, you are said to have a prefix operation. When the operator is placed after the variable, you are said to have a postfix operation.

For instance, consider the following example of postfix incrementation:

int x, y;
x = 1;
y = (x++ * 5);

In this example, postfix incrementation is used, and x is not incremented until after the evaluation of the expression is done. Therefore, y evaluates to 1 times 5, or 5. After the evaluation, x is incremented to 2.

Now look at an example using prefix incrementation:

int x, y;
x = 1;
y = (++x * 5);

This example is the same as the first one, except that this example uses prefix incrementation rather than postfix. Therefore, x is incremented before the expression is evaluated, making it 2. Hence, y evaluates to 2 times 5, or 10.

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Chaitenya Malviya2 months ago

Dear Raj,

I am good here, hope you are also doing well. Last month the heritage walk conducted in our city, where i came to know about many incredible buildings and sites, which are not commonly known to all of us.

There i got a chance to meet U.N. secretory general, that was a great experience for me, and knowing of your our city is a great pleasure.

loving you,

vignesh vishwa2 months ago
hi everyone,
Ya..television has impact on children,but in same television help the children to learn good thing and humanity.
Sometimes we have to think out of the box,nowadays there are many programmes which help the children in gaining academic and creative knowledge too, instead of getting used to of watching television we have limit the children a certain time for watching television...by doing this they wont be distracted from thier studies and also they will be updated and satisfied.
R.MohanRaj B.E3 months ago

Dear client,

I am writing this mail to inform you  that  we are celebrating the occasion of Durka
festival from   8th October to 10
October. due to the fact of our cultural festival, Despite that will not able
to send the report during this period.

I apologize for that inconvenience unable to send a report
on time. we assure you that we will send the report on 11th October.

I looking forward  to

Deepak Pandey4 months ago

Dear Mr. Gill Roy,

we apologize for the delay in your service. Your payment process which was scheduled for 10th May (Friday) is delayed by 7 days due to 3 days of an unexpected power outage and recovery process. We are trying to process it as fast as possible. we are ensuring you that it will not recur any more. Kindly stay tuned with us.

Thank you,

Regards

Abhimanyu

Project manager

Deepak Pandey4 months ago

Respected sir,

I am glad to inform you that our institute is going to organize the yearly happening fest 'TECHNICAL SYMPOSIUM' again this year. A lot of new students are going to participate in this fest. It's going to be a large gathering of new technical lovers. We are inviting your students to attend the fest and participate in it to provides new innovative ideas.

thank you

yours sincerely

SUNDER

collage srepresentative