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How do I specify a pointer to an overloaded function?
...ich f to use according to the function signature implied by the function pointer type:
// Uses the void f(char c); overload
std::for_each(s.begin(), s.end(), static_cast<void (*)(char)>(&f));
// Uses the void f(int i); overload
std::for_each(s.begin(), s.end(), static_cast<void (*)(int...
OceanBase使用libeasy原理源码分析：服务器端 - 数据库(内核) - 清泛网 - ...
...回调函数
easy_listen_t定义如下：
struct easy_listen_t {
int fd;<br> // read_watcher的下标
int8_t cur, old;
int8_t hidden_sum;<br> //如果为1，则所有线程可以监听同一个地址
uint8_t ...
How can I update the current line in a C# Windows Console App?
...
If you print only "\r" to the console the cursor goes back to the beginning of the current line and then you can rewrite it. This should do the trick:
for(int i = 0; i < 100; ++i)
{
Console.Write("\r{0}% ", i);
}
Notice th...
Creating an R dataframe row-by-row
...me rows, concatenate them using c(), pass them to a matrix row-by-row, and convert that matrix to a dataframe.
For example, rows
dummydata1=c(2002,10,1,12.00,101,426340.0,4411238.0,3598.0,0.92,57.77,4.80,238.29,-9.9)
dummydata2=c(2002,10,2,12.00,101,426340.0,4411238.0,3598.0,-3.02,78.77,-9999.00,-...
Importing a Maven project into Eclipse from Git
...ion to these issues:
You can't install m2e-egit (I get an error in Juno)
Converting a general project (connected to your Git repository) to a Maven project isn't working for you (The Import Maven Projects step seems essential)
Importing Maven Projects from your repository on the filesystem isn't s...
How to keep onItemSelected from firing off on a newly instantiated Spinner?
..., straightforward place to do this as the layout seems to happen at some point after onResume() and onPostResume(), so all of the normal hooks have completed by the time the layout happens.
– Dan Dyer
Dec 18 '10 at 13:05
...
Java Naming Convention with Acronyms [closed]
...
@DerFlatulator: it's a question of automation when converting from UpperCamelCase to lowerCamelCase: I had the problem when automating Hibernate mapping to a snake_case: DvdPlayer -> dvd_player but DVDPlayer -> d_v_d_player. There is no way to automate DVDPlayer to dvd_...
Why does .NET foreach loop throw NullRefException when collection is null?
So I frequently run into this situation... where Do.Something(...) returns a null collection, like so:
11 Answers
...
Generate a random alphanumeric string in Cocoa
...EFGHIJKLMNOPQRSTUVWXYZ0123456789";
-(NSString *) randomStringWithLength: (int) len {
NSMutableString *randomString = [NSMutableString stringWithCapacity: len];
for (int i=0; i<len; i++) {
[randomString appendFormat: @"%C", [letters characterAtIndex: arc4random_uniform([letters...
How do I delete everything in Redis?
...ushAll();
}
catch (Exception ex){
System.out.println(ex.getMessage());
}
}
}
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