Different type of operators and type casting in C programming

•  Airthmetic Operations

                + , - , *, / , %

• Relation Operations

                <. <=, >, >=, ==, !=

• Logical Operations

                && logical AND

                ||   logical OR

                !    logical NOT

• Assignment operations

                a = a+ 1  is called a += 1

• Increment/Decrement operators

            ++  and --  with prefix and postfix

• Bitwise Operations

            &     bitwise AND

            |     bitwise OR

            ^     bitwise exclusive OR    

            <<    bitswise left shift

            >>   bitwise right shift

• Special operators

            sizeof operators

            pointer operators & and *

            member selection operator  . and  ->

            comma operator (used in for and while loop to seperate several condition)

Implicit Type cast

When we have different kind of constants or variable of different types in an expression, C automatically convert lower type of operand to highter type operand and perform operation. Result will be in higher type operand.

Explicit Type Cast

In some case, we need to ask C to first perform type cast and perform operation.

float ratio;

int female_numbers

int male numbers

ration =  female_numbers / male_numbers 

Here we will loose fractional part of the answer. so we need to solve this as below

ration = (float) female_numbers/male_numbers

Here first female_numbers and male_numbers will be converted to float and then answer will be assigned to ration. No fractional value will be lost. 

Operator Precedence and Associativity in C

See this https://www.geeksforgeeks.org/operator-precedence-and-associativity-in-c/