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Why do pthreads’ condition variable functions require a mutex?
I’m reading up on pthread.h ; the condition variable related functions (like pthread_cond_wait(3) ) require a mutex as an argument. Why? As far as I can tell, I’m going to be creating a mutex just to use as that argument? What is that mutex supposed to do?
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What is a good Hash Function?
...plications in my data structures courses in college, but I mostly got that it's pretty hard to make a good hash function. As a rule of thumb to avoid collisions my professor said that:
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Is String.Format as efficient as StringBuilder
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NOTE: This answer was written when .NET 2.0 was the current version. This may no longer apply to later versions.
String.Format uses a StringBuilder internally:
public static string Format(IFormatProvider provider, string format, params object[] ar...
Composer install error - requires ext_curl when it's actually enabled
I'm trying to install Facebook PHP SDK with Composer. This is what I get
15 Answers
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Using an image caption in Markdown Jekyll
I am hosting a Jekyll Blog on Github and write my posts with Markdown. When I am adding images, I do it the following way:
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String representation of an Enum
...override String ToString(){
return name;
}
}
Update
Explicit (or implicit) type conversion can be done by
adding static field with mapping
private static readonly Dictionary<string, AuthenticationMethod> instance = new Dictionary<string,AuthenticationMethod>();
n.b...
Benefits of EBS vs. instance-store (and vice-versa) [closed]
I'm unclear as to what benefits I get from EBS vs. instance-store for my instances on Amazon EC2. If anything, it seems that EBS is way more useful (stop, start, persist + better speed) at relatively little difference in cost...? Also, is there any metric as to whether more people are using EBS now ...
What is reflection and why is it useful?
What is reflection, and why is it useful?
21 Answers
21
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Difference between Pragma and Cache-Control headers?
...follow
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edited Jan 18 '16 at 9:45
Shashank Agrawal
19.6k99 gold badges6161 silver badges9292 bronze badges
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A proper wrapper for console.log with correct line number?
I'm now developing an application, and place a global isDebug switch. I would like to wrap console.log for more convenient usage.
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