Question

In C#, (and feel free to answer for other languages), what order does the runtime evaluate a logic statement?

Example:

DataTable myDt = new DataTable(); if (myDt != null && myDt.Rows.Count > 0) {     //do some stuff with myDt } 

Which statement does the runtime evaluate first –

myDt != null 

or:

myDt.Rows.Count > 0 

?

Is there a time when the compiler would ever evaluate the statement backwards? Perhaps when an ‘OR’ operator is involved?

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& is known as a logical bitwise operator and will always evaluate all the sub-expressions

What is a good example of when to use the bitwise operator instead of the ‘short-circuited boolean’?

Answer 1

C# : Left to right, and processing stops if a non-match (evaluates to false) is found.