Question

What is the difference between a=5 and a==5 *​

Answer 1

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5-(-5)

5+5

10

Answer 2

What is the difference between int a=5 and int A==5?

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Difference between Assignment (=) Vs Equal to (==) Operators in C

Many times this question arises what is the difference between = and == operators in C programming language? Here we are going to tell you exactly what the differences between these two operators are.

Assignment Operator (=)

= is an Assignment Operator in C, C++ and other programming languages, It is Binary Operator which operates on two operands.

= assigns the value of right side expression’s or variable’s value to the left side variable.

Let's understand by example:

x=(a+b);

y=x;

Here, When first expression evaluates value of (a+b) will be assigned into x and in second expression y=x; value of variable xwill be assigned into y.

Equal To Operator (==)

== is an Equal To Operator in C and C++ only, It is Binary Operator which operates on two operands.

== compares value of left and side expressions, return 1 if they are equal other will it will return 0.

Let's understand by example:

int x,y;

x=10;

y=10;

if(x==y)

printf("True");

else

printf("False");

When expression x==y evaluates, it will return 1 (it means condition is TRUE) and "TRUE" will print.

Conclusion

So it's cleared now, ,both are not same, = is an Assignment Operator it is used to assign the value of variable or expression, while ==is an Equal to Operator and it is a relation operator used for comparison (to compare value of both left and right side operands).

Hope it helped