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C++ SFINAE examples?
...emplate<typename C> static One test(int C::*);
// Will be chosen if T is anything except a class.
template<typename C> static Two test(...);
public:
enum { Yes = sizeof(IsClassT<T>::test<T>(0)) == 1 };
enum { No = !Yes };
};
When IsClassT<int>::Yes i...
Resizing an iframe based on content
...ication. Content from other applications (on other domains) is shown using iframes.
20 Answers
...
Remove all occurrences of a value from a list?
... The code for habnabit's suggestion looks like this: [y for y in x if y != 2]
– coredumperror
Apr 22 '13 at 22:12
...
Is BCrypt a good hashing algorithm to use in C#? Where can I find it? [closed]
... a lookup table that contains all variations of characters hashed in a specific hashing algorithm.
Salt - a known random string appended to the original string before it is hashed.
For the .NET Framework, Bcrypt does not yet have a verified reference implementation. This is important because there...
How can I remove a commit on GitHub? [duplicate]
...n your local repository. You can do this using git rebase -i. For example, if it's your last commit, you can do git rebase -i HEAD~2 and delete the second line within the editor window that pops up.
Then, force push to GitHub by using git push origin +branchName --force
See Git Magic Chapter 5: Less...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
如何选择机器学习算法Choosing-a-Machine-Learning-Classifier如何针对某个分类问题决定使用何种机器学习算法？ 当然，如果你真心在乎准确率，最好的途径就是测试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），...
Constructing pandas DataFrame from values in variables gives “ValueError: If using all scalar values
...
The error message says that if you're passing scalar values, you have to pass an index. So you can either not use scalar values for the columns -- e.g. use a list:
>>> df = pd.DataFrame({'A': [a], 'B': [b]})
>>> df
A B
0 2 3
...
How to properly add cross-site request forgery (CSRF) token using PHP
...stically
Try this out:
Generating a CSRF Token
PHP 7
session_start();
if (empty($_SESSION['token'])) {
$_SESSION['token'] = bin2hex(random_bytes(32));
}
$token = $_SESSION['token'];
Sidenote: One of my employer's open source projects is an initiative to backport random_bytes() and random_...
How do I move files in node.js?
...
This will not work if you are crossing partitions or using a virtual filesystem not supporting moving files. You better use this solution with a copy fallback
– Flavien Volken
Sep 2 '15 at 12:50
...
How can I get the behavior of GNU's readlink -f on a Mac?
...It returns that file's canonicalized name—i.e., its absolute pathname.
If you want to, you can just build a shell script that uses vanilla readlink behavior to achieve the same thing. Here's an example. Obviously you could insert this in your own script where you'd like to call readlink -f
#...