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Why does integer overflow on x86 with GCC cause an infinite loop?

...efined behavior, it means it. Anything can happen. "Anything" includes "usually integers wrap around, but on occasion weird stuff happens". Yes, on x86 CPUs, integers usually wrap the way you expect. This is one of those exceptions. The compiler assumes you won't cause undefined behavior, and optim...
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MySQL Query - Records between Today and Last 30 Days

I want to return all records that were added to the database within the last 30 days. I need to convert the date to mm/dd/yy because of display purposes. ...
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How to restart a rails server on Heroku?

Locally I just interrupt (ctrl-c) and then start it again. 5 Answers 5 ...
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Difference between double and single curly brace in angular JS?

...ome directives like `ngSrc` --> <img ng-src="http://www.example.com/gallery/{{hash}}"/> <!-- set the title attribute --> <div ng-attr-title="{{celebrity.name}}">... <!-- set a custom attribute for your custom directive --> <div custom-directive custom-attr="{{pizza.si...
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Table row and column number in jQuery

... Off the top of my head, one way would be to grab all previous elements and count them. $('td').click(function(){ var colIndex = $(this).prevAll().length; var rowIndex = $(this).parent('tr').prevAll().length; }); ...
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Inner text shadow with CSS

... That's cool in chrome, I'm struggling to do an alternative fall-back for FF, that won't apply to Chrome without using JS and a namespace class. Any thoughts. P.S. Works beautifully on a leathr effect bg, looks like a branding stamp. – Will Hancock ...
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how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)

... found" onerror="this.onerror=null;this.src='imagefound.gif';" /> By calling this.onerror=null it will remove the onerror then try to get the alternate image. NEW I would like to add a jQuery way, if this can help anyone. <script> $(document).ready(function() { $(".backup_picture"...
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How to add extra namespaces to Razor pages instead of @using declaration?

...namespaces-with-razor.aspx which explains how to add a custom namespace to all your razor pages. Basically you can make this using Microsoft.WebPages.Compilation; public class PreApplicationStart { public static void InitializeApplication() { CodeGeneratorSettings.AddGlobalImport("Cus...
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Why is “a” != “a” in C?

...ifferent strings, which are stored in different locations. Doing so essentially looks like this: if(0x00403064 == 0x002D316A) // Two memory locations { printf("Yes, equal"); } Use the following code to compare two string values: #include <string.h> ... if(strcmp("a", "a") == 0) { ...
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What is the difference between up-casting and down-casting with respect to class variable

... supertype, while downcasting is casting to a subtype. Upcasting is always allowed, but downcasting involves a type check and can throw a ClassCastException. In your case, a cast from a Dog to an Animal is an upcast, because a Dog is-a Animal. In general, you can upcast whenever there is an is-a re...