How to avoid "if" chains?

Question

Assuming I have this pseudo-code: bool conditionA = executeStepA(); if (conditionA){ bool conditionB = executeStepB(); if (conditionB){ bool conditionC = executeStepC(); if (conditionC){ ... } } } executeThisFunctionInAnyCase(); Functions `executeStepX` should be executed if and only if the previous succeed. In any case, the `executeThisFunctionInAnyCase` function should be called at the end. I'm a newbie in programming, so sorry for the very basic question: is there a way (in C/C++ for example) to avoid that long `if` chain producing that sort of "pyramid of code", at the expense of the code legibility? I know that if we could skip the `executeThisFunctionInAnyCase` function call, the code could be simplified as: bool conditionA = executeStepA(); if (!conditionA) return; bool conditionB = executeStepB(); if (!conditionB) return; bool conditionC = executeStepC(); if (!conditionC) return; But the constraint is the `executeThisFunctionInAnyCase` function call. Could the `break` statement be used in some way?

Answer 1

NO.... OLD SCHOOL!!!

It has to stop somewhere....

indent 3 spaces per nested block....

USE COMMENTS TO INFORM THE READER OF WHICH BLOCK YOU ARE CLOSING!!!

if (conditionA)

{

conditionB = executeConditionA();

if (condtionB)

{

conditionC = executeConditionB();

if (coniditionC)

{

....

if (conditionY)

{

conditionZ = executeCOnditionY();

if (conditionZ)

{

....

} //z

} //y

} //D

}//C

}// B

}//A

executeThisFunctionInAnyCase();