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Modular multiplicative inverse function in Python
... Naive exponentiation is not an option because of time (and memory) limit for any reasonably big value of p like say 1000000007.
– dorserg
Jan 25 '11 at 21:11
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“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed
I wrote application for linux which uses Qt5.
17 Answers
17
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Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...Shell脚本示例看个例子吧：#! bin shcd ~mkdir shell_tutcd shell_tutfor ((i=0; i<10; i++)); do touch test_$i.txt...
什么是Shell脚本
示例
看个例子吧：
#!/bin/sh
cd ~
mkdir shell_tut
cd shell_tut
for ((i=0; i<10; i++)); do
touch test_$i.txt
done
示例解释...
C++ Dynamic Shared Library on Linux
...s
{
public:
MyClass();
/* use virtual otherwise linker will try to perform static linkage */
virtual void DoSomething();
private:
int x;
};
#endif
myclass.cc
#include "myclass.h"
#include <iostream>
using namespace std;
extern "C" MyClass* create_object()
{
return new MyClass...
Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
...to run the command every time i restart the computer. Is there an once-and-for-all way?
– Chris.Zou
Nov 14 '13 at 3:05
1
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Modifying the “Path to executable” of a windows service
...hanges. Many paths require quoted strings, which you can enter as follows, for example with MS SQL Server: sc config mssqlserver binPath= "\"F:\SQL DATA\MSSQL10.MSSQLSERVER\MSSQL\Binn\sqlservr.exe\" -sMSSQLSERVER"
– Marc Durdin
Nov 19 '14 at 23:30
...
How to convert a std::string to const char* or char*?
...y(str.begin(), str.end(), writable);
writable[str.size()] = '\0'; // don't forget the terminating 0
// don't forget to free the string after finished using it
delete[] writable;
Edit: Notice that the above is not exception safe. If anything between the new call and the delete call throws, you wil...
What is the Java equivalent of PHP var_dump?
...
It is not quite as baked-in in Java, so you don't get this for free. It is done with convention rather than language constructs. In all data transfer classes (and maybe even in all classes you write...), you should implement a sensible toString method. So here you need to override...
C# Sortable collection which allows duplicate keys
...eady stated in some other answers, you should use your own comparer class. For this sake I use a generic IComparer class, that works with anything that implements IComparable:
/// <summary>
/// Comparer for comparing two keys, handling equality as beeing greater
/// Use this Comparer e.g. wit...
Breakpoint on property change
Firebug for Firefox has a nice feature, called "Break on property change", where I can mark any property of any object, and it will stop JavaScript execution right before the change.
...