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C++ unordered_map using a custom class type as the key
... often.
A fairly good starting point for a hash function is one that uses bit shifting and bitwise XOR to combine the individual hash values. For example, assuming a key-type like this:
struct Key
{
std::string first;
std::string second;
int third;
bool operator==(const Key &o...
How do I interactively unstage a particular hunk in git?
...UI clients, but git gui is lightweight, built-in, and cross platform (lin, win, mac).
https://git-scm.com/docs/git-gui
Simply right click on a hunk to stage/unstage. For lines, highlight the lines first, then right click.
...
What is `related_name` used for in Django?
...el, User.map_set will still work, but the User.maps. syntax is obviously a bit cleaner and less clunky; so for example, if you had a user object current_user, you could use current_user.maps.all() to get all instances of your Map model that have a relation to current_user.
The Django documentation...
Using the HTML5 “required” attribute for a group of checkboxes?
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Inspired by the answers from @thegauraw and @Brian Woodward, here's a bit I pulled together for JQuery users, including a custom validation error message:
$cbx_group = $("input:checkbox[name^='group']");
$cbx_group.on("click", function() {
if ($cbx_group.is(":checked")) {
// checkb...
What's the difference between libev and libevent?
...ojects. Evident for example in lists.schmorp.de/pipermail/libev/2017q1/002710.html or lists.schmorp.de/pipermail/libev/2010q1/000912.html. Potential users should probably consider this, too.
– dbrank0
Mar 22 '17 at 8:36
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
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That’s probably everyone’s first thought. But it’s a little bit more difficult. See Chris Shiflett’s article SERVER_NAME Versus HTTP_HOST.
It seems that there is no silver bullet. Only when you force Apache to use the canonical name you will always get the right server name with SE...
How can I implement an Access Control List in my Web MVC application?
...ils and provide the ACL only with what it needs, which will also make it a bit more unit-testing friendly:
$command = array( get_class($this->target), $method );
/* -- snip -- */
$this->acl->isAllowed( $this->target->getPermissions(), $command )
Couple videos that might help you t...
Error handling with node.js streams
...ror' event you can listen on, but I want to know some more details about arbitrarily complicated situations.
8 Answers
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stash@{1} is ambiguous?
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On Windows, PowerShell will eat brackets too. You can escape them with a backtick (git stash drop stash@`{1`})
– Xavier Poinas
May 15 '12 at 6:52
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Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive
I just installed vs 2010, followed by IIS in window 7. when building a website in .net framework 4.0 and convert this into application in IIS then its shows this error
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