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The use of increment and decrement operators in combination with other arithmetic operators is not recommended, because:
It can significantly impair the readability of the code.
It introduces additional side effects into a statement, with the potential for undefined behavior.
It is safer to use these operators in isolation from any other arithmetic operators.
Noncompliant Code Example

u8a = ++u8b + u8c--; 
foo = bar++ / 4;

Compliant Solution

The following sequence is clearer and therefore safer:
++u8b;    
u8a = u8b + u8c; 
u8c--; 
foo = bar / 4;
bar++;

See


 MISRA C:2004, 12.1
 MISRA C:2004, 12.13
 MISRA C:2004, 13.3
 MISRA C++:2008, 5-2-10
 MISRA C:2012, 12.1
 MISRA C:2012, 13.3
 CERT, EXP30-C - 	Do not depend on the order of evaluation for side effects
 CERT, EXP30-CPP - Do not depend on order of evaluation between sequence points
 CERT, EXP05-J - Do not follow a write by a subsequent write or read of the same object within an expression