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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
In the x86-64 Tour of Intel Manuals , I read
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Difference between rake db:migrate db:reset and db:schema:load
The difference between rake db:migrate and rake db:reset is pretty clear in my head. The thing which I don't understand is how rake db:schema:load different from the former two.
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Declaring abstract method in TypeScript
I am trying to figure out how to correctly define abstract methods in TypeScript:
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Why should I use core.autocrlf=true in Git?
I have a Git repository that is accessed from both Windows and OS X, and that I know already contains some files with CRLF line-endings. As far as I can tell, there are two ways to deal with this:
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How to export revision history from mercurial or git to cvs?
I'm going to be working with other people on code from a project that uses cvs. We want to use a distributed vcs to make our work and when we finish or maybe every once in a while we want to commit our code and all of our revision history to cvs. We don't have write access to the project's cvs repo ...
Why does SIGPIPE exist?
From my understanding, SIGPIPE can only occur as the result of a write() , which can (and does) return -1 and set errno to EPIPE ... So why do we have the extra overhead of a signal? Every time I work with pipes I ignore SIGPIPE and have never felt any pain as a result, am I missing somethin...
CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
When building a class in CoffeeScript, should all the instance method be defined using the => ("fat arrow") operator and all the static methods being defined using the -> operator?
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How to create a database from shell command?
I'm looking for something like createdb in PostgreSQL or any other solution that would allow me to create database with a help of a shell command. Any hints?
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Detect if value is number in MySQL
Is there a way to detect if a value is a number in a MySQL query? Such as
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How to change the background color of the options menu?
I'm trying to change the default color for the options menu which is white: I want a black background for every item on the options menu.
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