c# Can someone explain this boolean logic

Question

// Example bool is true
bool t = true;

// Convert bool to int
int i = t ? 1 : 0;
Console.WriteLine(i); // 1

This converts false to 0 and true to 1, can someone explain to me how the t ? 1 : 0 works?

Answer 1

Look at the Ternary Operator.

int i = t ? 1 : 0;

Equates to:

if(t)
{
    i = 1;
}
else
{
    i = 0;
}

This syntax can be found in a variety of languages, even javascript.

Think of it like an English sentence if you swap the colon for "otherwise":

bool isItRaining = false;
int layersOfClothing = isItRaining? 2 otherwise 1;

Answer 2

It's the C# Conditional Operator.

i = does t == true? if yes, then assign 1, otherwise assign 0.

Can also be written as:

if (t == true)
   t = 1;
else 
   t = 0;

or

if (t)
  t = 1;
else
  t = 0;

Since t is true, it prints 1.