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How to delete migration files in Rails 3
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answered Oct 6 '10 at 16:56
Fábio BatistaFábio Batista
23.2k33 gold badges5050 silver badges6565 bronze badges
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How can I initialize base class member variables in derived class constructor?
...n you get this done? Like this:
class A
{
public:
A(int a, int b) : a_(a), b_(b) {};
int a_, b_;
};
class B : public A
{
public:
B() : A(0,0)
{
}
};
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Is APC compatible with PHP 5.4 or PHP 5.5?
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163
+500
Zend OP...
Convert string with commas to array
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682
For simple array members like that, you can use JSON.parse.
var array = JSON.parse("[" + stri...
How to Copy Text to Clip Board in Android?
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627
use ClipboardManager
ClipboardManager clipboard = (ClipboardManager) getSystemService(Contex...
How do I recursively delete a directory and its entire contents (files + sub dirs) in PHP?
...mdir contains a decent implementation:
function rrmdir($dir) {
if (is_dir($dir)) {
$objects = scandir($dir);
foreach ($objects as $object) {
if ($object != "." && $object != "..") {
if (is_dir($dir. DIRECTORY_SEPARATOR .$object) && !is_link($dir."/"...
When should the volatile keyword be used in C#?
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276
I don't think there's a better person to answer this than Eric Lippert (emphasis in the original...
os.walk without digging into directories below
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Use the walklevel function.
import os
def walklevel(some_dir, level=1):
some_dir = some_dir.rstrip(os.path.sep)
assert os.path.isdir(some_dir)
num_sep = some_dir.count(os.path.sep)
for root, dirs, files in os.walk(some_dir):
yield root, dirs, files
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Making an array of integers in iOS
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160
You can use a plain old C array:
NSInteger myIntegers[40];
for (NSInteger i = 0; i < 40; i...
Finding the type of an object in C++
...
dynamic_cast should do the trick
TYPE& dynamic_cast<TYPE&> (object);
TYPE* dynamic_cast<TYPE*> (object);
The dynamic_cast keyword casts a datum from one pointer or reference type to another, performing a runtime...