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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...
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 can I restart a Java application?
...ain().getCodeSource().getLocation().toURI());
/* is it a jar file? */
if(!currentJar.getName().endsWith(".jar"))
return;
/* Build command: java -jar application.jar */
final ArrayList<String> command = new ArrayList<String>();
command.add(javaBin);
command.add("-jar");
...
Use PHP to create, edit and delete crontab jobs?
...ntab -r' delete all the jobs of the user? Is there any way to delete a specific line of job in the crontabs of the user? Loading, searching and then deleting the found line seems to be the only way.
– datasn.io
Dec 12 '10 at 11:26
...
Print array elements on separate lines in Bash?
...
Try doing this :
$ printf '%s\n' "${my_array[@]}"
The difference between $@ and $*:
Unquoted, the results are unspecified. In Bash, both expand to separate args
and then wordsplit and globbed.
Quoted, "$@" expands each element as a separate argument, while "$*"
expands to the a...
How do I run a rake task from Capistrano?
...
With 'bundle exec' if available
– Bogdan Gusiev
Mar 18 '11 at 14:20
...
Sending a mail from a linux shell script
...
If the server is well configured, eg it has an up and running MTA, you can just use the mail command.
For instance, to send the content of a file, you can do this:
$ cat /path/to/file | mail -s "your subject" your@email.com...
Is there any way to put malicious code into a regular expression?
...mance degradation, but where a Thompson‐style NFA has no such problems.
If you only admit patterns that can be solved by DFAs, you can compile them up as such, and they will run faster, possibly much faster. However, it takes time to do this. The Cox paper mentions this approach and its attendant...
Last segment of URL in jquery
...21 '11 at 11:18
Frédéric HamidiFrédéric Hamidi
232k3737 gold badges445445 silver badges455455 bronze badges
...
css overflow - only 1 line of text
...
If you want to restrict it to one line, use white-space: nowrap; on the div.
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