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How to check whether a file or directory exists?
I want to check the existence of file ./conf/app.ini in my Go code,
but I can't find a good way to do that.
5 Answers
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Temporarily switch working copy to a specific Git commit
How to switch to specific Git commit without losing all the commits made after it ?
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SET versus SELECT when assigning variables?
What are the differences between the SET and SELECT statements when assigning variables in T-SQL?
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How to create a protocol with methods that are optional?
I noticed methods marked optional in several protocols defined in the iPhone SDK, such as the UIActionSheetDelegate protocol for example.
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User Authentication in ASP.NET Web API
This topic has been incredibly confusing for me. I am a rookie in HTTP apps but need to develop an iPhone client that consumes JSON data from somewhere. I chose Web API from MS because it seemed easy enough but when it comes to authenticating users, things get quite frustrating.
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compilation warning: no rule to process file for architecture i386
How can I resolve this warning?
5 Answers
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Is volatile expensive?
After reading The JSR-133 Cookbook for Compiler Writers about the implementation of volatile, especially section "Interactions with Atomic Instructions" I assume that reading a volatile variable without updating it needs a LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad ...
How can I wrap text to some length in Vim?
Let's speak of relative measures. My Vim looks like:
5 Answers
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WPF Databinding: How do I access the “parent” data context?
I have a list (see below) contained in a window. The window's DataContext has two properties, Items and AllowItemCommand .
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Razor ViewEngine: How do I escape the “@” symbol?
I'm trying to output some Twitter handles in ASP.NET MVC3 in conjunction with the Twitter @Anywhere API, and I haven't been able to figure out how to actually escape the "@" symbol in a Razor view.
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