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How can I profile C++ code running on Linux?
... a profiler, use one of the suggested ones.
However, if you're in a hurry and you can manually interrupt your program under the debugger while it's being subjectively slow, there's a simple way to find performance problems.
Just halt it several times, and each time look at the call stack. If there...
Logging Clientside JavaScript Errors on Server [closed]
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You could try setting up your own handler for the onerror event and use XMLHttpRequest to tell the server what went wrong, however since it's not part of any specification, support is somewhat flaky.
Here's an example from Using XMLHttpRequest to log JavaScri...
What is a software framework? [closed]
...o the measuring 1000 times; obviously, you would make a frame of 5m by 5m, and then with the help of it you would be able to cut 1000 pieces of paper in less time. So, what you did was make a framework which would do a specific type of task. Instead of performing the same type of task again and agai...
Copy existing project with a new name in Android Studio
I would like to copy my Android project and create a new project from the same files just with a different name. The purpose of this is so I can have a second version of my app which is ad supported in the app store.
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Why shouldn't I use “Hungarian Notation”?
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Most people use Hungarian notation in a wrong way and are getting wrong results.
Read this excellent article by Joel Spolsky: Making Wrong Code Look Wrong.
In short, Hungarian Notation where you prefix your variable names with their type (string) (Systems Hungarian) is ba...
Is floating point math broken?
...is like this. In most programming languages, it is based on the IEEE 754 standard. The crux of the problem is that numbers are represented in this format as a whole number times a power of two; rational numbers (such as 0.1, which is 1/10) whose denominator is not a power of two cannot be exactly re...
Should I always use a parallel stream when possible?
With Java 8 and lambdas it's easy to iterate over collections as streams, and just as easy to use a parallel stream. Two examples from the docs , the second one using parallelStream:
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Why do people say that Ruby is slow? [closed]
I like Ruby on Rails and I use it for all my web development projects. A few years ago there was a lot of talk about Rails being a memory hog and about how it didn't scale very well but these suggestions were put to bed by Gregg Pollack here.
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How to allocate aligned memory only using the standard library?
I just finished a test as part of a job interview, and one question stumped me, even using Google for reference. I'd like to see what the StackOverflow crew can do with it:
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Why do we use Base64?
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Your first mistake is thinking that ASCII encoding and Base64 encoding are interchangeable. They are not. They are used for different purposes.
When you encode text in ASCII, you start with a text string and convert it to a sequence of bytes.
When you encode data in Base64,...