if statement - Compound relational operators in C

Question

I am trying to convert a piece of pseudo code into a C code and I have conditions like

if (-4 <= X <=8)
THEN {Do Something}
else
{Do something else}

Is the syntax in if statement valid? Can a constant be placed before the variable in the logical condition to check the truth value?

Answer 1

In C, you cannot write a condition like

if (-4 <= X <= 8) {
     // ...
} else {
     // ...
}

Instead, you will have to split this into two separate checks:

if (-4 <= X && X <= 8) {
     // ...
} else {
     // ...
}

This code is now totally fine - you can have whatever operands you'd like on either side of the <= operator.