I don't understand a piece of someones answer

Question

This is an odd question but in someones else's answer in a different question they posted the following

try
{
   PingReply reply = pinger.Send(nameOrAddress);
   pingable = reply.Status == IPStatus.Success;
}

How does pingable = reply.Status == IPStatus.Success; work? To me that looks like an if statement without the if.

`pingable` is a boolean variable. See [this question](http://stackoverflow.com/q/18183591) from earlier today. — H H, Aug 12 '13 at 18:58

score 10 · Accepted Answer · answered Aug 12 '13 at 18:58

10

reply.Status == IPStatus.Success

will return a boolean which will be assigned to pingable variable.

Same thing will happen inside if statement: First the expression will be calculated, with true or false as a result, and only the result will be checked as branch condition.

answered Aug 12 '13 at 18:58

Nemanja Boric

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Thank you. I did not know that you could do stuff like this without actually writing out an if statement. I am always looking for ways to make code look cleaner. – Jeebwise Aug 13 '13 at 00:40

score 3 · Answer 2 · answered Aug 12 '13 at 19:00

3

Same as

if(reply.Status == IPStatus.Success)
    pingable = true;
else
    pingable = false;

The code

reply.Status == IPStatus.Success

returns a boolean that is inserted in pingable.

answered Aug 12 '13 at 19:00

the_lotus

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score 2 · Answer 3 · answered Aug 12 '13 at 18:58

2

(reply.Status == IPStatus.Success) evaluates as a boolean true or false

answered Aug 12 '13 at 18:58

randcd

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score 1 · Answer 4 · answered Aug 12 '13 at 18:59

1

the operator == always resolves to a boolean

so

pingable = reply.Status == IPStatus.Success;

puts true in pingable if reply.Status and IPStatus.Success are equal, and it puts false in pingable if they are not.

answered Aug 12 '13 at 18:59

Sam I am says Reinstate Monica

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score 1 · Answer 5 · answered Aug 12 '13 at 18:59

1

It is a condition. pingable is boolean.

answered Aug 12 '13 at 18:59

FelProNet

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score 0 · Answer 6 · answered Aug 12 '13 at 18:59

0

pingable (as boolean) is set to if reply.Status is equal to IPStatus.Sucess

answered Aug 12 '13 at 18:59

Adriaan Stander

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I don't understand a piece of someones answer

6 Answers6