Maybe i have missed an ANSI C rule?? With old compiler (V3.40) both versions show the same results. With new compiler versions the first version recognizes dead code which is eliminated. Werner
Sorry about my ignorance what is MISRA? Werner
http://www.misra.org.uk/misra-c.htm
You can read also follow article: http://www.embedded.com/1999/9912/9912feat1.htm There are also some links. HTH VK