How to rewrite complicated lines of C++ code (nested ternary operator)

Question

I\'ve been looking through someone else\'s code for debugging purposes and found this:

!m_seedsfilter ? good=true : m_seedsfilter==1 ? good=newClusters(Sp) :         


        

Answer 1

if ( !m_seedsfilter )
  good = true;
else if ( m_seedsfilter == 1 )
  good = newClusters(Sp);
else
  good = newSeed(Sp);

An expression followed by ? corresponds roughly to if ( expression ) while the : introduces something similar to an else clause. Note that this is an expression rather than a statement, i.e.

 ?  : 

is an expression whose value is expression-1 if condition is true, otherwise it is expression-2.