Expressions in C and Operator Precedence and Associativity

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Expression :

Expressions in C are basically operators acting on operands. Statements like a = a + 3, ++a and
(4 * x+34) are all expressions. Strictly speaking, even a single variable or constant can be considered an expression.

Operator Precedence & Associativity :

Order of precedence means the rank in which all the operators in a c++ expression.
The order of precedence and associativity is written in the below figure.

Operator precedence Chart :

Click on the image to see it clearly...


















Examples :

This expression	is evaluated in this order
1+2*2	1+(2*2)
1+2*2*4	1+((2*2)*4)
(1+2)*2*4	((1+2)*2)*4
1+4,c=2|3+5	(1+4),(c=(2|(3+5)))
1 + 5&4 == 3	(1 + 5) & (4 == 3)
c=1,99	(c=1),99
!a++ + ~f()	(!(a++)) + (~(f()))

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