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What is the effect of extern “C” in C++?
... client C code can link to (use) your function using a C compatible header file that contains just the declaration of your function. Your function definition is contained in a binary format (that was compiled by your C++ compiler) that the client C linker will then link to using the C name.
Since C+...
Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu
...32bit and 64bit libstdc++-dev packages, but I had the "c++config.h no such file or directory" problem.
Resolution:
The directory /usr/include/c++/4.4.6/x86_64-redhat-linux was missing.
I did the following:
cd /usr/include/c++/4.4.6/
mkdir x86_64-redhat-linux
cd x86_64-redhat-linux
ln -s ../i686-...
How can I profile Python code line-by-line?
I've been using cProfile to profile my code, and it's been working great. I also use gprof2dot.py to visualize the results (makes it a little clearer).
...
CocoaPods and GitHub forks
...is in a Cocoapods project, I:
Push my changes to my fork
Configure my Podfile to get the changes & update
Once you've pushed your changes to your fork, get the SHA of your last commit. You can do this using git rev-parse origin/master | pbcopy or on the GitHub commits page for your project:...
Eclipse ctrl+right does nothing
...w..." checkbox, then another option to disable welcome screen is to create file in your workspace:
.metadata\.plugins\org.eclipse.ui.intro\introstate
and insert following content:
<?xml version="1.0" encoding="UTF-8"?>
<state reopen="false"/>
...
unresolved reference to object [INFORMATION_SCHEMA].[TABLES]
... some had an E: drive and others just a C: drive. We copied that reference file out and put it in a shared location so we could reference it via .\SharedSchemas\master.dacpac. That's probably resolved now, but was an issue in the first release.
– Peter Schott
A...
Delete text in between HTML tags in vim?
...t repeatable. The key sequence might look like this:
[cursor on start of file]
qa/>[enter]lv/<[enter]dnq
then press:
20@a
to do this for 20 tags
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Why does “_” (underscore) match “-” (hyphen)?
... e.g. inside a LIKE statement. When replacing all _ with an - : UPDATE sys_file set identifier = REPLACE(identifier, '_', '-') WHERE identifier LIKE '%\_%';. Notice the escaping inside LIKE and no escaping inside REPLACE. (I find it strange though that you are not in a pattern context inside replace...
Delimiters in MySQL
..., stored procedures or triggers as an entire statement. Normally in a .sql file you set a different DELIMITER like $$. The DELIMITER command is used to change the standard delimiter of MySQL commands (i.e. ;). As the statements within the routines (functions, stored procedures or triggers) end with ...
Can you autoplay HTML5 videos on the iPad?
...t just some mechanisms so that a user still "feels" as if a video or audio file is "auto playing."
The quick work around is hide a video tag somewhere on the mobile page, since I built a responsive site I only do this for smaller screens. The video tag (HTML and jQuery examples):
HTML
<video i...