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Using generic std::function objects with member functions in one class
... in size, assigning this to an std::function will result in dynamic memory allocation.
On the other hand, a lambda that captures this is only one pointer in size, assigning it to an std::function will not result in dynamic memory allocation with g++.
While I have not verified this with other compi...
Rails Root directory path?
... It's usually not a good idea to hardcode what the file separator token is (\ or /).
– Alexander Bird
Mar 15 '13 at 15:05
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C++ Lock-free Hazard Pointer（冒险指针） - C/C++ - 清泛网 - 专注C/C++及内核技术
...re(const std::atomic<T *> &target) {
auto pointer = HazardPointer<T>::Alloc();
do {
pointer->target_ = target.load(std::memory_order_acquire);
} while (pointer->target_.load(std::memory_order_acquire) !=
target.load(std::memory_order_acquire));
return Holde...
Bogus foreign key constraint fail
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On demand, now as an answer...
When using MySQL Query Browser or phpMyAdmin, it appears that a new connection is opened for each query (bugs.mysql.com/bug.php?id=8280), making it neccessary to write all the drop statements in one query, eg.
SET FOREIGN_KEY_CHECKS=0;
DROP TABLE my_first_...
Is there a way to simulate the C++ 'friend' concept in Java?
...d, you could go one step further and disallow getting the friend without a token: getFriend(Service.FriendToken). This FriendToken would be an inner public class with a private constructor, so that only Service could instantiate one.
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Function to return only alpha-numeric characters from string?
I'm looking for a php function that will take an input string and return a sanitized version of it by stripping away all special characters leaving only alpha-numeric.
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How to prevent a jQuery Ajax request from caching in Internet Explorer?
...ks var ajaxfile = base+"index.php/msc/popup_view/"+obj+"/"+id+"/"+no_tab; $.ajax({type: "GET",url: ajaxfile, //contentType: "application/json; charset=utf-8", cache: false, success: function(msg){ $("#popup").html(msg); } });
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Split a collection into `n` parts with LINQ?
...reate the linked list until you reach the first item - that way there's no allocation if the source is empty
– ShadowChaser
May 6 '11 at 17:24
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When to Redis? When to MongoDB? [closed]
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Redis. Let’s say you’ve written a site in php; for whatever reason, it becomes popular and it’s ahead of its time or has porno on it. You realize this php is so freaking slow, "I’m gonna lose my fans because they simply won’t wait 10 seconds for a page." You ha...
Convert Base64 string to an image file? [duplicate]
...4_decode($image));
You can create 'public_feeds' in laravel's filesystem.php-
'public_feeds' => [
'driver' => 'local',
'root' => public_path() . '/uploads/feeds',
],
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