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Why does changing 0.1f to 0 slow down performance by 10x?
... than on normalized floating-point. This is because many processors can't handle them directly and must trap and resolve them using microcode.
If you print out the numbers after 10,000 iterations, you will see that they have converged to different values depending on whether 0 or 0.1 is used.
Here...
Reverting a single file to a previous version in git [duplicate]
... to go through different commits on a file.
Say I modified a file 5 times and I want to go back to change 2, after I already committed and pushed to a repository.
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How do I make Git use the editor of my choice for commits?
... variable: export GIT_EDITOR=vim
If you want to set the editor for Git and also other programs, set the standardized VISUAL and EDITOR environment variables*:
export VISUAL=vim
export EDITOR="$VISUAL"
* Setting both is not necessarily needed, but some programs may not use the more-correct VIS...
bash: pip: command not found
I downloaded pip and ran python setup.py install and everything worked just fine. The very next step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error "bash: pip: command not found".
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Best Practice: Initialize JUnit class fields in setUp() or at declaration?
...ayList, with cases like testIndexOutOfBoundException, testEmptyCollection, and the like. The perspective there is of someone writing a class and making sure it works right.
You should probably do the same when testing your own classes: create your object in setUp or in a test method, so that you'll...
Why can't radio buttons be “readonly”?
... Disabled doesn't work, because it doesn't submit the value (or does it?), and it grays out the radio button. Read-only is really what I'm looking for, but for some mysterious reason it doesn't work.
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HtmlSpecialChars equivalent in Javascript?
Apparently, this is harder to find than I thought it would be. And it even is so simple...
16 Answers
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Directory does not exist. Parameter name: directoryVirtualPath
i just published my project to my host on Arvixe and get this error (Works fine local):
20 Answers
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Why doesn't C have unsigned floats?
...If C++ did support it, then you would be sometimes using an unsigned float and not realizing that your performance has just been killed. If C++ supported it then every floating point operation would need to be checked to see if it is signed or not. And for programs that do millions of floating poi...
How can I set the WiX installer version to the current build version?
I wrote an application and its WiX installer and put it under version control using subversion. When the WiX installer builds I want its version number to be the current build version of the application. How do I accomplish this? I used c# to code the application.
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