分类:常见Bug
Lazy IO Lazy IO works like this readFile :: FilePath -> IO ByteString where ByteString is guaranteed to only be read chunk-by-chunk. To do so we could (almost) write -- given `readChunk` whi...
I've come across this problem a few times myself. What happened is that intellij lost the module in my project settings. Here's my steps to fix it: File -> Project Structure -> Click on modul...
atoi can do that for you Example: char string[] = "1234"; int sum = atoi( string ); printf("Sum = %d\n", sum ); // Outputs: Sum = 1234 ...
You don't need to re-install to get a 'clean install', you can just wipe the application's data. Go to Settings > Applications > Find your app and use 'clear data' (or similar). At that point y...
From my comment: I would use setTimeout [docs] and always call it when the previous response was received. This way you avoid possible congestion or function stacking or whatever you want to call it,...
In PL/PgSQL parser, assignment operator is defined as assign_operator : '=' | COLON_EQUALS ; This is a legacy feature, present in source code since 1998, when it wa...
I'm thinking that your output parameter is coming back with a DBNull value. Add a check for that like this var outputParam = dataAccCom.GetParameterValue(IDbCmd, "op_Id"); if(!(outputParam is DBNul...
use source /etc/profile for details, man source or you can checkout this link http://bash.cyberciti.biz/guide/Source_command...
What do I do wrong? The source code of ToastDisplay is OK (mine is similar and works), but it will only receive something, if it is currently in foreground (you register receiver in onResume). Bu...
WebSockets will not make AJAX entirely obsolete and WebSockets can do cross-domain. AJAX AJAX mechanisms can be used with plain web servers. At its most basic level, AJAX is just a way for a web pag...
There's now a brew formula homebrew-virt-manager which I've used to successfully connect to a CentOS 5 box running qemu+kvm. brew tap jeffreywildman/homebrew-virt-manager brew install virt-manager ...
The _ has to be put at the end - not at the beginning: Exclude Map and Set from the import import scala.collection.mutable.{Map => _, Set => _, _} Exclude Set and rename Map to ScalaMutable...
GMT does not adjust for Daylight saving time (DST). You can hear it from the horse's mouth on this web site. Add this line of code to see the source of the problem: Console.WriteLine(TimeZoneIn...
You can match the beginning of the string with \A and the end with \Z. In ruby ^ and $ match also the beginning and end of the line, respectively: >> "a\na" =~ /^a$/ => 0 >> "a\na" =...
Yeah, the definition of what ‘strong emphasis’ is compared to just ‘emphasis’ is pretty woolly. The only standard definition would be “it's emphasised, but more!!”. Personally I use <em> for no...
On Linux, Java threads are implemented with native threads, so a Java program using threads is no different from a native program using threads. A "Java thread" is just a thread belonging to a JVM pr...
You can insert into a varbinary(max) field using T-SQL within SQL Server Management Studio and in particular using the OPENROWSET commmand. For example: INSERT Production.ProductPhoto ( Thumb...
Sadly, programming a Finder plugin actually does still require getting your hands dirty with COM. If you look at the SCFinderPlugin subproject of the SCPlugin project, you will find that it follows e...
Possibly. Depends on what you mean by "better". If you are asking for a "better" solution in terms of functionality, then this is pretty much it. If you are asking for a "better" in the sense of "le...
This syntax is documented only in log4j 2.X so make sure you are using the correct version. It does not work on the 1.X versions. <Appenders> <File name="file" fileName="${env:LOG...
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