Question

I am trying to form an if statement like so:

int myVariable = -1;
if (0 <= myVariable <= 99)
{
   // Do something
}

However, if I assigned -1 to myVariable, which is an int, the if-statement still evaluations to true.

What am I doing wrong ?

Answer 1

That is not the correct way to say what you want in C++ syntax. You want:

int myVariable = -1;
if (0 <= myVariable && myVariable <= 99)
{
   // Do something
}

What you wrote does the following:
1) Evaluate 0 <= myVariable, which in your example will be false (converted to 0 in C++ in this context)
2) Then this result (0) is compared against <= 99, so C++ reads “0 <= 99”, which is true, so the if statement is true.