NSURL does have this method: – (BOOL)checkResourceIsReachableAndReturnError:(NSError **)error Which “Returns whether the resource pointed to by a file URL can be reached.” NSURL *theURL = [NSURL fileURLWithPath:@”/Users/elisevanlooij/nonexistingfile.php” isDirectory:NO]; NSError *err; if ([theURL checkResourceIsReachableAndReturnError:&err] == NO) [[NSAlert alertWithError:err] runModal];
There isn’t a single “intel CPU”, especially in terms of what operations are optimized with respect to others!, but most of them, at CPU level (specifically within the FPU), are such that the answer to your question: are double operations just as fast or faster than float operations for +, -, *, and /? is … Read more
I was getting frustrated with copy and paste in the simulator and couldn’t figure out what was going on. Results were similar to what you describe: copy and paste would sometimes paste the same value as I had copied before, but not what I just copied to the clipboard. I finally realized that the simulator … Read more
DISCLAIMER: THIS WILL DELETE ALL OF YOUR ECLIPSE WORKSPACE SETTINGS AND YOU WILL HAVE TO RE-IMPORT ALL YOUR PROJECTS, THERE ARE LESS DESTRUCTIVE ANSWERS HERE Try the following: Delete the .metadata folder in your local workspace (this is what worked for me). It seems that it contains a .LOCK file that if not properly closed, … Read more
Open a good text editor (I’d recommend TextMate, but the free TextWrangler or vi or nano will do too), and open: /etc/apache2/httpd.conf Find the line: “#LoadModule php5_module libexec/apache2/libphp5.so” And uncomment it (remove the #). Download and install the latest MySQL version from mysql.com. Choose the x86_64 version for Intel (unless your Intel Mac is the … Read more
You need to add your macOS user name to the _developer group. See the posts in this thread for more information. The following command should do the trick: sudo dscl . append /Groups/_developer GroupMembership <username>
Go to the File inspector in interface builder, and untick “Use Auto Layout”.
Just add -v or –verbose, for example: $ brew ls –verbose exim
To get Xcode 4.2 on Snow Leopard to run code on a device running iOS 5.1 you can do this: If you have another Mac running Lion and Xcode 4.3.1 you can copy the files from: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/5.1 (9B176) Place the copied files in the equivalent place on your Snow Leopard Mac: probably /Developer/Platforms/iPhoneOS.platform/DeviceSupport Similarly copy … Read more
I suppose you meant strace -fetrace=open? dtruss -f -t open python myfile.py