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AI2 SideBar Extension
...ensive one and developed one myself. Almost all properties are adjustable. If something is missing, write to me: E-Mail to Ulli. Version history Version Adjustments 1.0 (2021-01-28) Initial version 1.1 (2021-10-05) Event ItemCheckedChanged was not triggered. 1.2 (20...
What does -z mean in Bash? [duplicate]
...
-z string True if the string is null (an empty string)
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半个汉字的校验与处理(C++) - C/C++ - 清泛网 - 专注C/C++及内核技术
...长度
char *GetTruncate(char *strSrc, int nMaxLen)
{
if (strSrc == NULL || nMaxLen == 0)
{
return NULL;
}
int len = strlen(strSrc);
if (len == 0)
{
return strSrc;
}
int size = len; bool bFlag...
C++中判断文件、目录是否存在的几种方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...介绍几种方法。
首先关于判断文件的存在性：
一、ifstream
在C++中，可以利用ifstream文件输入流，当我们直接使用ifstream来创建文件输入流的时候，如果文件不存在则流创建失败。
ifstream fin("hello.txt");
if (!fin)
{
std::cout <...
WSAAsyncSelect模型 - C/C++ - 清泛网 - 专注C/C++及内核技术
...始化代码
WSADATA wsaData;
WORD sockVersion = MAKEWORD(2, 2);
if(WSAStartup(sockVersion, &wsaData) != 0)
{
return 0;
}
USHORT nPort=4567;
SOCKET s=socket(AF_INET,SOCK_STREAM,0);
sockaddr_in sin;
sin.sin_family=AF_INET;
sin.sin_port=ntohs(nPort);
sin.sin_addr.S_un.S_addr...
Linux C/C++进程单实例互斥代码分享 - C/C++ - 清泛网 - 专注C/C++及内核技术
...enter_app_singleton() {
int fd = open(kPidFileName, O_RDWR | O_TRUNC);
if (fd == -1) {
//对应的锁文件当前不存在，试图创建该锁文件
fd = creat(kPidFileName, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
if (fd > 0) {
fchmod(fd, S_IRUSR|S_IRUSR|S_IWUSR|S_IRGRP|S...
How to encrypt/decrypt data in php?
...= openssl_random_pseudo_bytes($key_size, $strong);
// $strong will be true if the key is crypto safe
This can be done once or multiple times (if you wish to create a chain of encryption keys). Keep these as private as possible.
IV
The initialisation vector adds randomness to the encryption and r...
How to empty (“truncate”) a file on linux that already exists and is protected in someway?
...ror looks like it's from csh, so you would do:
cat /dev/null >! file
If I'm wrong and you are using bash, you should do:
cat /dev/null >| file
in bash, you can also shorten that to:
>| file
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最新版AI伴侣测试历程 - HarmonyOS NEXT - 清泛IT社区，为创新赋能！
[6:37:16 PM] I/[YAIL] begin: 2 个子表达式
[6:37:16 PM] I/[YAIL] begin[1]: (require) len=2
[6:37:16 PM] I/[YAIL] begin[2]: (process-repl-input) len=3
[6:37:16 PM] I/[YAIL] begin: 1 个子表达式
[6:37:16 PM] I/[YAIL] begin[1]: (define-event) len=6
[6:37:16 PM] I/[YAIL] ...
Is there a command to undo git init?
...
Thanks Mathew, but can you expound on "if you just inited it"- what if i've done some stuff since, a few commits etc, would simply removing this be a problem?
– Yarin
Jul 9 '10 at 12:23
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