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How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
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Standard C Preprocessor
$ cat xx.c
#define VARIABLE 3
#define PASTER(x,y) x ## _ ## y
#define EVALUATOR(x,y) PASTER(x,y)
#define NAME(fun) EVALUATOR(fun, VARIABLE)
extern void NAME(mine)(char *x);
$ gcc -E xx.c
# 1 "xx.c"
# 1 "<built-in>"
# 1 ...
Is gcc std::unordered_map implementation slow? If so - why?
We are developing a highly performance critical software in C++. There we need a concurrent hash map and implemented one. So we wrote a benchmark to figure out, how much slower our concurrent hash map is compared with std::unordered_map .
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Chrome Extension how to send data from content script to popup.html
...o that I've tried reading the documentation but messaging in chrome I just can't understand what to do.
2 Answers
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What is the difference between 'classic' and 'integrated' pipeline mode in IIS7?
I was deploying an ASP.NET MVC application last night, and found out that it is less work to deploy with IIS7 set to integrated mode. My question is what is the difference? And what are the implications of using one or the other?
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What exactly is Hot Module Replacement in Webpack?
...xperimental feature.
HMR is a way of exchanging modules in a running application (and adding/removing modules). You basically can update changed modules without a full page reload.
Documentation
Prerequirements:
Using Plugins: https://webpack.js.org/concepts/plugins/
Code Splitting: https://web...
Can I set max_retries for requests.request?
... You do not have to specify this for every site if this is not needed. You can just do session.mount('http://', HTTPAdapter(max_retries=10)) this will work for all http connections. The same with https will then work for all https connections.
– user136036
Apr ...
How to build an android library with Android Studio and gradle?
... a project I am/was working on.
Gradle has a defined structure ( that you can change, link at the bottom tells you how ) that is very similar to Maven if you have ever used it.
Project Root
+-- src
| +-- main (your project)
| | +-- java (where your java code goes)
| | +-- res (where you...
Which parts of Real World Haskell are now obsolete or considered bad practice?
...keep in mind that many libraries changed since its release.
Something you can read along while reading RWH is "What I Wish I Knew When Learning Haskell" by Stephen Diehl. It provides additional insight, but be aware, some sections aren't really newcomer friendly.
General remarks
Read the comment...
How do I set up a basic Ruby project?
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To get a good start, you can use the bundle gem command and rspec --init.
~/code $ bundle gem my_lib
create my_lib/Gemfile
create my_lib/Rakefile
create my_lib/LICENSE.txt
create my_lib/README.md
create my_lib/.git...
Enable access control on simple HTTP server
... not allow any customization, especially not for the headers it sends. You can however create a simple HTTP server yourself, using most of SimpleHTTPRequestHandler, and just add that desired header.
For that, simply create a file simple-cors-http-server.py (or whatever) and, depending on the Python...