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How do I fix “for loop initial declaration used outside C99 mode” GCC error?
...ngth arrays
support for one-line comments beginning with //, as in BCPL or C++
new library functions, such as snprintf
new header files, such as stdbool.h and inttypes.h
type-generic math functions (tgmath.h)
improved support for IEEE floating point
designated initializers
compound literals
support ...
Embed SVG in SVG?
...ng as recursion.svg:
<svg width="100%" height="100%" viewBox="-100 -100 200 200" version="1.1"
xmlns="http://www.w3.org/2000/svg">
<circle cx="-50" cy="-50" r="30" style="fill:red" />
<image x="10" y="20" width="80" height="80" href="recursion.svg" />
</svg>
...
send Content-Type: application/json post with node.js
...n (error, response, body) {
if (!error && response.statusCode == 200) {
console.log(body.id) // Print the shortened url.
}
});
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Ruby off the rails
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We are mainly a C++ shop, but we've found several areas where Ruby has proven quite useful. Here are a few:
Code Generation - Built several DSLs to generate C++/Java/C# code from single input files
Build Support
scripts to generate Make...
Absolute positioning ignoring padding of parent
...it. I added another Div and made it red and changed you parent's height to 200px just to test it. The idea is the the child now becomes the grandchild and the parent becomes the grandparent. So the parent respects its parent. Hope you get my idea.
<html>
<body>
<div style="back...
Nodejs send file in response
...hole file into memory before sending the file). The server listens on port 2000.
[Update] As mentioned by @Aftershock in the comments, util.pump is gone and was replaced with a method on the Stream prototype called pipe; the code below reflects this.
var http = require('http'),
fileSystem = re...
Sass calculate percent minus px
...the width of the container, you could do like this:
#container
width: #{200}px
#element
width: #{(0.25 * 200) - 5}px
I'm aware that in many cases #container could have a relative width. Then this wouldn't work.
sh...
Can two different strings generate the same MD5 hash code?
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True, I updated my post. The 2004 random collision attack is very fast indeed. The 2007 MD5 prefix collision attack can take days -- but is generally much more useful to an attacker
– intgr
Nov 18 '09 at 15:53
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What is the runtime performance cost of a Docker container?
...n Mod Memcached
Connection rate: 11419.3 conn/s
Connection time [ms]: avg 200.5 min 0.6 max 263.2 stddev 73.85
Connect time [ms]: avg 26.2 min 0.0 max 53.5 stddev 14.59
Request rate: 114192.6 req/s (0.0 ms/req)
Request size [B]: avg 129.0 min 129.0 max 129.0 stddev 0.00
Response rate: 114192.6 rsp/...
What is a lambda expression in C++11?
What is a lambda expression in C++11? When would I use one? What class of problem do they solve that wasn't possible prior to their introduction?
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