Ternary operator translation

Question

What would this translate to (in a more verbose way)?

local.sin_addr.s_addr = (!ip_address) ? INADDR_ANY:inet_addr(ip_address);

Trying to understand Ternary operators and I can't quite get it.

That's a basic construct of the language. Please see [a beginner's text book](http://stackoverflow.com/questions/562303/the-definitive-c-book-guide-and-list). — R Sahu, Oct 13 '16 at 04:59
I'm voting to close this question as off-topic because the answer to the question can be found in any beginner's text book. — R Sahu, Oct 13 '16 at 05:03

Carcigenicate · Answer 1 · 2016-10-13T05:05:20.603

0

Ternarys are used when you want to assign to a variable, and you have exactly two options.

The equivalent of:

int a = true ? 1 : 2;

Is:

int a;
if (true) {
    a = 1;
} else {
    a = 2;
}

Understanding this, you should be able to translate your code.

edited Oct 13 '16 at 05:05

answered Oct 13 '16 at 05:01

Carcigenicate

What does "you have exactly options" mean? Did you mean "you have exactly two options"? – Barmar Oct 13 '16 at 05:04
@Barmar Whoops, sorry, yes. I'm extraordinarily tired. Good catch. – Carcigenicate Oct 13 '16 at 05:05

score 0 · Answer 2 · answered Oct 13 '16 at 05:05

Well ternary operators is a shorthand of your if/else statement. To explain the condition above it would look like this.

(condition) ? (return true value) : (return false value)

And this could be translated into a long form statement like @Carcigenicate answer.

score 0 · Accepted Answer · answered Oct 13 '16 at 05:07

0

A ternary is similar to an if statement, but it can be used where an expression is required. So it's equivalent to:

if (!ip_address) {
    local.sin_addr.s_addr = INADDR_ANY;
} else {
    local.sin_addr.s_addr = inet_addr(ip_address);
}

answered Oct 13 '16 at 05:07

Barmar

3 Answers3