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What are Java command line options to set to allow JVM to be remotely debugged?
...-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 <YourAppName>
For java 1.4:
java -Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=5005 <YourAppName>
For java 1.3:
java -Xnoagent -Djava.compiler=NONE -Xdebug -Xrunjdwp:transport=dt_socket,server=y,...
Is file append atomic in UNIX?
In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it po...
What is uint_fast32_t and why should it be used instead of the regular int and uint32_t?
...ract the low-level representation and make it easier to comprehend ( uint64_t instead of long long type, which is 8 bytes).
...
解决：Run-Time Check Failure #0，The value of ESP was not properly sav...
...就可以在定义该函数的时候加上一句话，
FAR PASCAL 或者 __stdcall 这个就OK了。
具体做法：
比如说你要定义一个 返回类型为空，参数为空的函数指针：
typedef void （*LPFUN）（void）;
这样确实跟我们dll里的函数匹配了，上面也说...
Passing variable number of arguments around
...
To pass the ellipses on, you have to convert them to a va_list and use that va_list in your second function. Specifically;
void format_string(char *fmt,va_list argptr, char *formatted_string);
void debug_print(int dbg_lvl, char *fmt, ...)
{
char formatted_string[MAX_FMT_SI...
How do I get the function name inside a function in PHP?
...
The accurate way is to use the __FUNCTION__ predefined magic constant.
Example:
class Test {
function MethodA(){
echo __FUNCTION__;
}
}
Result: MethodA.
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...
pip broke. how to fix DistributionNotFound error?
...s problem in my MacBook, the reason is because as @Stephan said, I use easy_install to install pip, and the mixture of both py package manage tools led to the pkg_resources.DistributionNotFound problem.
The resolve is:
easy_install --upgrade pip
Remember: just use one of the above tools to manag...
django syncdb and an updated model
...er
Django doesn't support migrations out of the box. There is a pluggable app for Django that does exactly that though, and it works great. It's called South.
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What's the 'environment' task in Rake?
... the rake tasks are, and I found an empty task definition that depends on 'app:environment', but I can't find the definition of the app:environment task. github.com/rails/rails/blob/master/railties/lib/rails/tasks/…
– odigity
Jan 27 '15 at 20:18
...
Use logging print the output of pprint
...rmatter to add name and levelname when logging. It looks a little untidy:
__main__ : DEBUG : ['aaaaaaaaaaaaaaaaaaaa',
'bbbbbbbbbbbbbbbbbbbb',
'cccccccccccccccccccc',
'dddddddddddddddddddd']
__main__ : DEBUG : Some other logging text
There may be a more elegant solution, but this:
for l...