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What happens to global and static variables in a shared library when it is dynamically linked?
...d in other modules. This means that you will get linker errors if you try, for example, to create an executable that is supposed to use an extern variable defined in a DLL, because this is not allowed. You would need to provide an object file (or static library) with a definition of that extern vari...
Test for existence of nested JavaScript object key
... ... levelN*/) {
var args = Array.prototype.slice.call(arguments, 1);
for (var i = 0; i < args.length; i++) {
if (!obj || !obj.hasOwnProperty(args[i])) {
return false;
}
obj = obj[args[i]];
}
return true;
}
var test = {level1:{level2:{level3:'level3'}} };
checkNested(...
Why does SSL handshake give 'Could not generate DH keypair' exception?
...around using BouncyCastle's JCE implementation. Hopefully that should work for you.
UPDATE
This was reported as bug JDK-7044060 and fixed recently.
Note, however, that the limit was only raised to 2048 bit. For sizes > 2048 bit, there is JDK-8072452 - Remove the maximum prime size of DH Keys; ...
Get Android .apk file VersionName or VersionCode WITHOUT installing apk
...
Following worked for me from the command line:
aapt dump badging myapp.apk
NOTE: aapt.exe is found in a build-tools sub-folder of SDK. For example:
<sdk_path>/build-tools/23.0.2/aapt.exe
...
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
...nclude <stdio.h>
#include <stdlib.h>
int main( void )
{
// Check for existence.
if( (_access( "crt_ACCESS.C", 0 )) != -1 )
{
printf_s( "File crt_ACCESS.C exists.\n" );
// Check for write permission.
// Assume file is read-only.
if( (_access( "c...
How to step through Python code to help debug issues?
...
Yes! There's a Python debugger called pdb just for doing that!
You can launch a Python program through pdb by using pdb myscript.py or python -m pdb myscript.py.
There are a few commands you can then issue, which are documented on the pdb page.
Some useful ones to reme...
Getting key with maximum value in dictionary?
...
You can use operator.itemgetter for that:
import operator
stats = {'a':1000, 'b':3000, 'c': 100}
max(stats.iteritems(), key=operator.itemgetter(1))[0]
And instead of building a new list in memory use stats.iteritems(). The key parameter to the max() func...
Git Symlinks in Windows
Our developers use a mix of Windows and Unix based OS's. Therefore, symlinks created on Unix machines become a problem for Windows developers. In windows (msysgit), the symlink is converted to a text file with a path to the file it points to. Instead, I'd like to convert the symlink into an actual W...
How do I write a short literal in C++?
...e with GCC and the option -Wconversion you still get a compiler diagnostic for the statement short foo = 1; foo += (short)2;. But this can't be circumvented due to the integer promotion.
– harper
Jan 27 '14 at 11:44
...
Run certain code every n seconds [duplicate]
Is there a way to, for example, print Hello World! every n seconds?
For example, the program would go through whatever code I had, then once it had been 5 seconds (with time.sleep() ) it would execute that code. I would be using this to update a file though, not print Hello World.
...