android.util.Config.DEBUG is true if this is a debug build. import static android.util.Config.DEBUG;
if (DEBUG) ... On Oct 2, 9:48 am, Dianne Hackborn <[email protected]> wrote: > Yeah you will still get the concats, which you really don't want to keep > (those are really expensive). We typically write logging like this: > if (DEBUG) Log.v("foo", "this is something: " + something); > > Then when DEBUG is false the entire statement, including string > concatenation, is stripped. > > > > On Fri, Oct 2, 2009 at 9:17 AM, Dan Sherman <[email protected]> wrote: > > I would imagine it does the string concat and then disregards it. It would > > concat, pass the final string to the function, fail the if, return, and > > discard the string... > > > - Dan > > > On Fri, Oct 2, 2009 at 9:31 AM, jsdf <[email protected]> wrote: > > >> Hi all, > > >> I have been using the following conventions for my applications: > > >> - I define a static log(String msg) function centrally as: > >> public static void log(String msg) { > >> if (LOG) Log.v(msg); > >> } > > >> - While debugging, LOG is true. For production, LOG is false. > > >> - Throughout the code, I will then log with functions like: > >> MainApp.log("This is a logged message, variable a="+a); > > >> My question is, if I set LOG to false, will the compiler recognize > >> that the entire log function is useless and not even perform the > >> string concatenation? Or, will it perform the string concatenation, > >> but then immediately disregard the results? Obviously, I prefer the > >> former (fewer ops = better), but I don't know how to check for this. > > >> Thanks, > >> jsdf > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > Note: please don't send private questions to me, as I don't have time to > provide private support, and so won't reply to such e-mails. All such > questions should be posted on public forums, where I and others can see and > answer them. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
