CCoding Style - Break up complex expressions
Revision as of 09:30, 23 June 2015 by Jshankar (1 revision imported: EdWiki -- Emsys pages from Shukra)
Break-up complex expressions
- C has a very rich expression syntax and operators, and it’s easy to get carried away by cramming everything into one construction.
- An expression like the following is compact but it packs too many operations into a single statement:
*x += (*xp = (2*k < (n-m) ? c[k+1] : d[k--]) );
It’s easier to grasp when broken into several pieces:
if( 2*k < (n – m) ) *xp = c[k+1]; else *xp = d[k-1]; *x += *xp;