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In C++, what is a “namespace alias”?
... simply, the #define won't work.
namespace Mine { class MyClass { public: int i; }; }
namespace His = Mine;
namespace Yours { class Mine: public His::MyClass { void f() { i = 1; } }; }
Compiles fine. Lets you work around namespace/class name collisions.
namespace Nope { class Oops { public: int...
What do the parentheses around a function name mean?
...ence of any preprocessor stuff going on, foo's signature is equivalent to
int foo (int *bar)
The only context in which I've seen people putting seemingly unnecessary parentheses around function names is when there are both a function and a function-like macro with the same name, and the programme...
how to read value from string.xml in android?
...
String string = getString(R.string.hello);
You can use either getString(int) or getText(int) to retrieve a string. getText(int) will retain any rich text styling applied to the string.
Reference: https://developer.android.com/guide/topics/resources/string-resource.html
...
How to prevent custom views from losing state across screen orientation changes
...w.BaseSavedState class.
public class CustomView extends View {
private int stateToSave;
...
@Override
public Parcelable onSaveInstanceState() {
//begin boilerplate code that allows parent classes to save state
Parcelable superState = super.onSaveInstanceState();
SavedState s...
Check if all elements in a list are identical
...be infinite or just dynamically generated. You can only find its length by converting it to a list which takes away most of the iterators advantages
– Ivo van der Wijk
Oct 5 '10 at 5:51
...
How can I get every nth item from a List?
... Yes, I suppose it sort of depends what you mean by "nth," but your interpretation might be more common. Add or subtract from i to suit your needs.
– mqp
Mar 25 '09 at 17:39
...
What happens to C# Dictionary lookup if the key does not exist?
...ue if the key does exist, use Dictionary<TKey, TValue>.TryGetValue:
int value;
if (dictionary.TryGetValue(key, out value))
{
// Key was in dictionary; "value" contains corresponding value
}
else
{
// Key wasn't in dictionary; "value" is now 0
}
(Using ContainsKey and then the the ...
How to pass variable number of arguments to a PHP function
...
If you have your arguments in an array, you might be interested by the call_user_func_array function.
If the number of arguments you want to pass depends on the length of an array, it probably means you can pack them into an array themselves -- and use that one for the second ...
How to make part of the text Bold in android at runtime?
...e) {
SpannableStringBuilder sb = new SpannableStringBuilder(text);
int start = text.indexOf(spanText);
int end = start + spanText.length();
sb.setSpan(style, start, end, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
textView.setText(sb);
}
Use it in an Activity like so:
@Override
prote...
What happened to console.log in IE8?
...ice.call(arguments);
// console.raw captures the raw args, without converting toString
console.raw.push(args);
var message = args.join(' ');
console.messages.push(message);
fallback(message);
};
// redefine console
if (typeof console === 'undefine...