Simple case of precedence – Computer Sir Ki Class

Simple case of precedence – Computer Sir Ki Class

Code Learning #CPP#1752

Simple case of precedence

The order in which operators are applied on operands in an expression can be understood with this example.

Learning Objectives

Learning steps in simple precedence like the arithmetic precedence learnt at school level.

Source Code

Run Output

Code Understanding

int x=12 – 5 + 12 / 3 * 2;
In general the BODMAS (Bracket, Of, Divide, Multiply, Add, Subtract) precedence as learned in schools apply. But since c++ has a long list of operators, precedence confusions may arise. For time being let us try to solve above with simple rules only.
12-5+12/3*2
12-5+4*2 (Divide applied)
12-5+8 (Multiply applied)
7+8 =15 (Solved left to right when only add subtract are left)
So the output would be 15.

Notes

Standard document for operator precedence in c++ can be referred at
http://en.cppreference.com/w/cpp/language/operator_precedence

Suggested Filename(s): precedence.cpp, simpleprecedence.cpp

CSKC| Created: 17-Dec-2017 | Updated: 31-Aug-2018|

Post Views: 567

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