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Difference between 'new operator' and 'operator new'?
...ething like your own container, you can call operator new directly, like:
char *x = static_cast<char *>(operator new(100));
It's also possible to overload operator new either globally, or for a specific class. IIRC, the signature is:
void *operator new(size_t);
Of course, if you overloa...
How to find the Windows version from the PowerShell command line
...fo. Powershell wrapper:
PS C:\> systeminfo /fo csv | ConvertFrom-Csv | select OS*, System*, Hotfix* | Format-List
OS Name : Microsoft Windows 7 Enterprise
OS Version : 6.1.7601 Service Pack 1 Build 7601
OS Manufacturer : Microsoft Corporation
OS Configuration : Stan...
VIM Ctrl-V Conflict with Windows Paste
...nce CTRLV is used to paste, you can't use it to start a blockwise Visual
selection. You can use CTRLQ instead. You can also use CTRLQ in Insert
mode and Command-line mode to get the old meaning of CTRLV. But CTRLQ
doesn't work for terminals when it's used for control flow.
...
What is base 64 encoding used for?
...You never know -- some protocols may interpret your binary data as control characters (like a modem), or your binary data could be screwed up because the underlying protocol might think that you've entered a special character combination (like how FTP translates line endings).
So to get around th...
How do I remove all .pyc files from a project?
...
If you're using bash >=4.0 (or zsh)
rm **/*.pyc
Note that */*.pyc selects all .pyc files in the immediate first-level subdirectories while **/*.pyc recursively scans the whole directory tree. As an example, foo/bar/qux.pyc will be deleted by rm **/*.pyc but not by */*.pyc.
The globstar she...
Understanding recursion [closed]
.... We'll use a binary tree of nodes, but this time the value held will be a character, not a number.
Our tree will have a special property, that for any node, its character comes after (in alphabetical order) the character held by its left child and before (in alphabetical order) the character held ...
Why is it impossible to build a compiler that can determine if a C++ function will change the value
... /* modify variable */
variable = 1;
}
}
int main(int argc, char **argv) {
if (modifies_variable(f, variable)) {
printf("Modifies variable\n");
} else {
printf("Does not modify variable\n");
}
return 0;
}
...
How should a model be structured in MVC? [closed]
...t you also share the instances of various servers to be shared between the selected controller and view for a given request-response cycle.
Alteration of model's state
Now that you can access to the model layer in the controllers, you need to start actually using them:
public function postLogin(...
Throw keyword in function's signature
...lowing code?
#include <iostream>
void throw_exception() throw(const char *)
{
throw 10;
}
void my_unexpected(){
std::cout << "well - this was unexpected" << std::endl;
}
int main(int argc, char **argv){
std::set_unexpected(my_unexpected);
try{
throw_excepti...
Android selector & text color
...or/button_dark_text.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:color="#000000" /> <!-- pressed -->
<item android:state_focused="true"
...