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Are GUID collisions possible?

... Basically, no. I think someone went mucking with your database. Depending on the version GUID you're using the value is either unique (for things like version 1 GUIDs), or both unique and unpredictable (for things like version 4...
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CSS @font-face - what does “src: local('☺')” mean?

...icates any two-byte unicode characters won't work in a font name on Mac at all, so that lessens the likelihood that someone actually released a font with such a name. There are a few reasons why smiley is a better solution: Webkit+Font Management software can mess up local referenc...
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Can't execute jar- file: “no main manifest attribute”

I have installed an application, when I try to run it (it's an executable jar) nothing happens. When I run it from the commandline with: ...
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Append lines to a file using a StreamWriter

... I assume you are executing all of the above code each time you write something to the file. Each time the stream for the file is opened, its seek pointer is positioned at the beginning so all writes end up overwriting what was there before. You can so...
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How do I include a newline character in a string in Delphi?

... In the System.pas (which automatically gets used) the following is defined: const sLineBreak = {$IFDEF LINUX} AnsiChar(#10) {$ENDIF} {$IFDEF MSWINDOWS} AnsiString(#13#10) {$ENDIF}; This is from Delphi 2009 (notice the use of AnsiChar and ...
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How do I add more members to my ENUM-type column in MySQL?

...ABLE carmake MODIFY COLUMN country ENUM('Sweden','Malaysia'); I would actually recommend a country table rather than enum column. You may have hundreds of countries which would make for a rather large and awkward enum. EDIT: Now that I can see your error message: ERROR 1265 (01000): Data truncate...
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Can virtual functions have default parameters?

... or a derived class' -- is determined by the static type used to make the call to the function. If you call through a base class object, pointer or reference, the default denoted in the base class is used. Conversely, if you call through a derived class object, pointer or reference the defaults de...
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Hosting a Maven repository on github

I have a fork of a small open sourced library that I'm working on on github. I'd like to make it available to other developers via maven, but I don't want to run my own Nexus server, and because it's a fork I can't easily deploy it to oss.sonatype.org. ...
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Ant: How to execute a command for each file in directory?

..."> <echo message="${theFile}"/> </target> This will antcall the target "bar" with the ${theFile} resulting in the current file. share | improve this answer | ...
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How do I split a string so I can access item x?

... This works but allocates a lot of memory and wastes CPU. – jjxtra May 26 '15 at 16:56 2 ...