Write a C program to Perform Operator Precedence

By | December 3, 2016

C program to Perform Operator Precedence


Write a C program to Perform Operator Precedence. Here’s a Simple Program for implementing or perform operator precedence C Programming Language.

The C language standard doesn’t specify operator precedence. It specifies the language grammar, and the precedence table is derived from it to simplify understanding.


Operator Precedence : 


  • Operator precedence determines the grouping of terms in an expression and decides how an expression is evaluated. Certain operators have higher precedence than others; for example, the multiplication operator has a higher precedence than the addition operator.
  • For example, x = 7 + 3 * 2; here, x is assigned 13, not 20 because operator * has a higher precedence than +, so it first gets multiplied with 3*2 and then adds into 7.

Operator precedence & associativity table


Operator precedence & associativity are listed in the following table and this table is summarized in decreasing Order of priority i.e topmost operator has highest priority and bottommost operator has Lowest Priority.

Operator

Description

Associativity

( )
[ ].
->
++ –
Parentheses (function call) (see Note 1)
Brackets (array subscript)
Member selection via object name
Member selection via pointer
Postfix increment/decrement (see Note 2)

left-to-right

++ –
+ –
! ~
(type)
*
&
sizeof
Prefix increment/decrement
Unary plus/minus
Logical negation/bitwise complement
Cast (convert value to temporary value of type)
Dereference
Address (of operand)
Determine size in bytes on this implementation
right-to-left
*  /  % Multiplication/division/modulus left-to-right
+  – Addition/subtraction left-to-right
<<  >> Bitwise shift left, Bitwise shift right left-to-right
<  <=
>  >=
Relational less than/less than or equal to
Relational greater than/greater than or equal to
left-to-right
==  != Relational is equal to/is not equal to left-to-right
& Bitwise AND left-to-right
^ Bitwise exclusive OR left-to-right
| Bitwise inclusive OR left-to-right
&& Logical AND left-to-right
| | Logical OR left-to-right
? : Ternary conditional right-to-left
=
+=  -=
*=  /=
%=  &=
^=  |=
<<=  >>=
Assignment
Addition/subtraction assignment
Multiplication/division assignment
Modulus/bitwise AND assignment
Bitwise exclusive/inclusive OR assignment
Bitwise shift left/right assignment
right-to-left

,

Comma (separate expressions) left-to-right

Below is the source code for C Program to input values into an array and display them which is successfully compiled and run on Windows System to produce desired output as shown below :


SOURCE CODE : :



OUTPUT : :



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