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Iteration over std::vector: unsigned vs signed index variable
... /* std::cout << value; ... */
Using indices
for(std::vector<int>::size_type i = 0; i != v.size(); i++) {
/* std::cout << v[i]; ... */
}
Using arrays
Using iterators
for(element_type* it = a; it != (a + (sizeof a / sizeof *a)); it++) {
/* std::cout << *it; ...
Overload constructor for Scala's Case Classes?
...rloading constructors isn't special for case classes:
case class Foo(bar: Int, baz: Int) {
def this(bar: Int) = this(bar, 0)
}
new Foo(1, 2)
new Foo(1)
However, you may like to also overload the apply method in the companion object, which is called when you omit new.
object Foo {
def apply(...
Detecting when user has dismissed the soft keyboard
...Subclass the EditText and implement:
@Override
public boolean onKeyPreIme(int keyCode, KeyEvent event) {
if (event.getKeyCode() == KeyEvent.KEYCODE_BACK) {
// Do your thing.
return true; // So it is not propagated.
}
return super.dispatchKeyEvent(event);
}
Here is a link on how to ...
How to implement Rate It feature in Android App
...g APP_PNAME = "com.example.name";// Package Name
private final static int DAYS_UNTIL_PROMPT = 3;//Min number of days
private final static int LAUNCHES_UNTIL_PROMPT = 3;//Min number of launches
public static void app_launched(Context mContext) {
SharedPreferences prefs = mContex...
How do I use valgrind to find memory leaks?
...
Let's take a look at the C code I wrote too:
#include <stdlib.h>
int main() {
char* string = malloc(5 * sizeof(char)); //LEAK: not freed!
return 0;
}
Well, there were 5 bytes lost. How did it happen? The error report just says
main and malloc. In a larger program, that would be ...
Why does flowing off the end of a non-void function without returning a value not produce a compiler
... Warn whenever a function is defined with a return-type that
defaults to int. Also warn about any
return statement with no return-value
in a function whose return-type is not
void (falling off the end of the
function body is considered returning
without a value), and about a return
sta...
Show/Hide the console window of a C# console application
...indWindow() to find the console window by its title . I dug a bit deeper into the Windows API and found that there is a much better and easier way, so I wanted to post it here for others to find.
...
Generic List - moving an item within the list
...class has a Move method that does exactly what you want.
public void Move(int oldIndex, int newIndex)
Underneath it is basically implemented like this.
T item = base[oldIndex];
base.RemoveItem(oldIndex);
base.InsertItem(newIndex, item);
So as you can see the swap method that others have sugges...
push_back vs emplace_back
...u can now perfectly forward the arguments and construct directly an object into a container without a temporary at all.
That's useful because no matter how much cleverness RVO and move semantic bring to the table there is still complicated cases where a push_back is likely to make unnecessary copi...
Python, add trailing slash to directory string, os independently
...OS X, this returns the path unchanged; on case-insensitive filesystems, it converts the path to lowercase. On Windows, it also converts forward slashes to backward slashes.
Else you could look for something else on this page
...