大约有 44,000 项符合查询结果（耗时：0.0888秒） [XML]
Pragma in define macro
...rgument
except it can be used in macros (see section 6.10.9 of the c99 standard, or 16.9 of the c++0x final committee draft)
For example,
#define STRINGIFY(a) #a
#define DEFINE_DELETE_OBJECT(type) \
void delete_ ## type ## _(int handle); \
void delet...
How can I catch a ctrl-c event?
...;stdlib.h>
#include <stdio.h>
#include <unistd.h>
void my_handler(int s){
printf("Caught signal %d\n",s);
exit(1);
}
int main(int argc,char** argv)
{
struct sigaction sigIntHandler;
sigIntHandler.sa_handler = my_handler;
sigemptyset(&sigIntHand...
PostgreSQL delete all content
...
Use the TRUNCATE TABLE command.
share
|
improve this answer
|
follow
|
...
Show compose SMS view in Android
I want to send a sms with Android.
14 Answers
14
...
How to perform file system scanning
...e versions of GO in the near future.
There's actually a function in the standard lib just for this: filepath.Walk.
package main
import (
"path/filepath"
"os"
"flag"
)
type visitor int
// THIS CODE NO LONGER WORKS, PLEASE SEE ABOVE
func (v visitor) VisitDir(path string, f *os.FileInf...
What is the logic behind the “using” keyword in C++?
...aration. The
identifier following the using keyword becomes a typedef-name and the
optional attribute-specifier-seq following the identifier appertains
to that typedef-name. It has the same semantics as if it were
introduced by the typedef specifier. In particular, it does not define
a new type and ...
Finding duplicates in O(n) time and O(1) space
...ns in O(N) time. A swap only occurs if there is an i such that A[i] != i, and each swap sets at least one element such that A[i] == i, where that wasn't true before. This means that the total number of swaps (and thus the total number of executions of the while loop body) is at most N-1.
The seco...
Android global variable
...
You can extend the base android.app.Application class and add member variables like so:
public class MyApplication extends Application {
private String someVariable;
public String getSomeVariable() {
return someVariable;
}
...
Using Enums while parsing JSON with GSON
...
From the documentation for Gson:
Gson provides default serialization and deserialization for Enums... If you would prefer to change the default representation, you can do so by registering a type adapter through GsonBuilder.registerTypeAdapter(Type, Object).
Following is one such approach.
...
Creating a custom JButton in Java
Is there a way to create a JButton with your own button graphic and not just with an image inside the button?
5 Answers
...