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What is causing “Unable to allocate memory for pool” in PHP?

...this problem, please specify you .ini settings. Specifically your apc.mmap_file_mask setting. For file-backed mmap, it should be set to something like: apc.mmap_file_mask=/tmp/apc.XXXXXX To mmap directly from /dev/zero, use: apc.mmap_file_mask=/dev/zero For POSIX-compliant shared-memory-back...
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How do I check if a type is a subtype OR the type of an object?

...ass A { } public class B : A { } public class MyClass { private Type _helperType; public Type HelperType { get { return _helperType; } set { var testInstance = (A)Activator.CreateInstance(value); if (testInstance==null) t...
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Does order of where clauses matter in SQL?

...nswered Jul 11 '12 at 15:50 marc_smarc_s 650k146146 gold badges12251225 silver badges13551355 bronze badges ...
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What is the difference between JavaConverters and JavaConversions in Scala?

...onversions in Scala are Scope based so if you don't import JavaConversions._, conversions will not occur so you have the control on what is converted. If you place the import the right way (only when needed), you have full control on where the conversion is done. – David ...
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Contains method for a slice

...st, but is trivial to write: func contains(s []int, e int) bool { for _, a := range s { if a == e { return true } } return false } You can use a map if that lookup is an important part of your code, but maps have cost too. ...
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Converting JavaScript object with numeric keys into array

... own loop [which would not be that complex!], or you rely on underscore.js _.toArray() method: var obj = {"0":"1","1":"2","2":"3","3":"4"}; var yourArray = _(obj).toArray(); share | improve this a...
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Search for executable files using find command

... Tip of the hat to @gniourf_gniourf for clearing up a fundamental misconception. This answer attempts to provide an overview of the existing answers and to discuss their subtleties and relative merits as well as to provide background information, espe...
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Does ruby have real multithreading?

...0.0 S 31T 0:00.01 0:00.01 /Library/Java/JavaVirtualMachines/jdk1.7.0_25.jdk/Contents/Home/bin/java -Djdk.home= -Djruby.home=/Users/jalcazar/.rvm/rubies/jruby-1.7.10 -Djruby.script=jruby -Djruby.shell=/bin/sh -Djffi.boot.library.path=/Users/jalcazar/.rvm/rubies/jruby-1.7.10/lib/jni:/Users/jalc...
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HashSet versus Dictionary w.r.t searching time to find if an item exists

...for both, for me, in this test. Test Code: private const int TestReps = 100_000_000; [Test] public void CompareHashSetContainsVersusDictionaryContainsKey() { for (int j = 0; j < 10; j++) { var rand = new Random(); var dict = new Dictionary<int, int>(); var ha...
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Backbone.View “el” confusion

...gName: "li", //this defaults to div if you don't declare it. template: _.template("<p><%= someModelKey %></p>"), events: { //this event will be attached to the model elements in //the el of every view inserted by AppView below "click": "someFunctio...