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Passing a 2D array to a C++ function
...o pass a 2D array to a function:
The parameter is a 2D array
int array[10][10];
void passFunc(int a[][10])
{
// ...
}
passFunc(array);
The parameter is an array containing pointers
int *array[10];
for(int i = 0; i < 10; i++)
array[i] = new int[10];
void passFunc(int *a[10]) //Array c...
Good ways to sort a queryset? - Django
...
What about
import operator
auths = Author.objects.order_by('-score')[:30]
ordered = sorted(auths, key=operator.attrgetter('last_name'))
In Django 1.4 and newer you can order by providing multiple fields.
Reference: https://docs.djangoproject.com/en/dev/ref/models/querysets/#order-by
order_by(...
How to configure an existing git repo to be shared by a UNIX group
...Boyd Smith
14.6k2323 gold badges9999 silver badges150150 bronze badges
answered Jul 13 '10 at 23:34
David UnderhillDavid Underhill
...
Insert text into textarea with jQuery
...
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edited Jun 3 '09 at 19:31
answered Jun 3 '09 at 19:22
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Switch branch names in git
...
answered Aug 22 '08 at 7:33
Greg HewgillGreg Hewgill
783k167167 gold badges10841084 silver badges12221222 bronze badges
...
C++ Dynamic Shared Library on Linux
...bject( MyClass* object )
{
delete object;
}
MyClass::MyClass()
{
x = 20;
}
void MyClass::DoSomething()
{
cout<<x<<endl;
}
class_user.cc
#include <dlfcn.h>
#include <iostream>
#include "myclass.h"
using namespace std;
int main(int argc, char **argv)
{
/* on Linu...
Most efficient way to store thousand telephone numbers
...here are for which the binary number consisting of the first m bits is all 0, for how many phone numbers the first m bits are at most 0...01, for how many phone numbers the first m bits are at most 0...10, etcetera, up to the count of phone numbers for which the first m bits are 1...11 - this last c...
App Inventor 2 蓝牙BLE扩展源码分析 - WriteBytes vs WriteStrings 23字节...
...写入路径
位于 BLEWriteOperation.write() 方法第678-690行：
if (mClass == String.class) {
byte[] str = ((String) data.get(0)).getBytes();
// ↓ 23字节硬限制！
final int len = Math.min(23, str.length + (null...
In Python, if I return inside a “with” block, will the file still close?
...|
edited Dec 12 '12 at 17:01
answered Mar 27 '12 at 7:42
Th...