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What is size_t in C?
... the return type
of size_t. Further, the most
frequently used compiler-based
operator sizeof should evaluate to a
constant value that is compatible with
size_t.
As an implication, size_t is a type guaranteed to hold any array index.
...
“Keep Me Logged In” - the best approach
...logs in, generate a large (128 to 256 bit) random token. Add that to a database table which maps the token to the userid, and then send it to the client in the cookie.
What if the attacker guesses the random token of another user?
Well, let's do some math here. We're generating a 128 bit random t...
Separate Back Stack for each tab in Android using Fragments
... time I wanted to use Fragments.
So this is how I done it.
1. Create a base Fragment Class
public class BaseFragment extends Fragment {
AppMainTabActivity mActivity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAct...
How do I read any request header in PHP
... ["User-Agent"]=>
// string(108) "Mozilla/5.0 (Windows NT 6.1; WOW64) [...]"
// }
Earlier this function worked only when PHP was running as an Apache/NSAPI module.
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How to hide keyboard in swift on pressing return key?
...
Dharmesh Kheni
64.7k2929 gold badges149149 silver badges159159 bronze badges
answered Apr 30 '15 at 10:33
CodetardCo...
/usr/lib64/gcc/ ... /bin/ld: cannot find -lxxx 踩坑记录 - C/C++ - 清泛网 - 专注C/C++及内核技术
/usr/lib64/gcc/ ... /bin/ld: cannot find -lxxx 踩坑记录编译一个模块时依赖xxx模块，在确认依赖路径及依赖xxx so文件名均正确的前提下，编译仍然报错： usr lib64 gcc bin ld: cannot find -lxxx最后才发现，xxx目录生成的目 编译一个模块时依...
尝试加载 Oracle 客户端库时引发 BadImageFormatException。如果在安装 32 ...
...atException。如果在安装 32 位 Oracle 客户端组件的情况下以 64 位模式运行，将出现此问题。尝试加载 Oracle 客户端库时引发 BadImageFormatException。如果在安装 32 位 Oracle 客户端组件的情况下以 64 位模式运行，将出...“尝试加载 Oracle ...
Creating a blurring overlay view
...x faster than non accelerated gaussian, but not so ugly as box blur. See a demo in here (Java plugin version) or here (JavaScript version). This algorithm is used in KDE and Camera+ and others. It doesn't use the Accelerate Framework but it's fast.
Accelerate Framework
In the session “Implemen...
Lambda capture as const reference?
...t;(best_string)](const string& s)
{
best_string = s; // fails
};
DEMO
In c++17 using std::as_const:
[&best_string = std::as_const(best_string)](const string& s)
{
best_string = s; // fails
};
DEMO 2
...
How to save all the variables in the current python session?
...
64
Having sat here and failed to save the globals() as a dictionary, I discovered you can pickle a...