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Order of member constructor and destructor calls
... for
the constructor of the most derived
class as described below, virtual base
classes shall be initialized in the
order they appear on a depth-first
left-to-right traversal of the
directed acyclic graph of base
classes, where “left-to-right” is the
order of appearance of the base class
names i...
Using pg_dump to only get insert statements from one table within database
...o get all rows as INSERT statements from one specific table within a database using pg_dump in PostgreSQL.
4 Answers
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what's the correct way to send a file from REST web service to client?
...
I don't recommend encoding binary data in base64 and wrapping it in JSON. It will just needlessly increase the size of the response and slow things down.
Simply serve your file data using GET and application/octect-streamusing one of the factory methods of javax.ws....
Generating Random Passwords
...
this method (base 62) is superior than the GUID(base 16) on strength: an 8-char hex string is equivalent to a 4-5 char alphanumeric one
– Jimmy
Sep 10 '08 at 18:51
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Get the current displaying UIViewController on the screen in AppDelegate.m
...er on iPhone):
extension UIApplication {
class func topViewController(base: UIViewController? = UIApplication.sharedApplication().keyWindow?.rootViewController) -> UIViewController? {
if let nav = base as? UINavigationController {
return topViewController(base: nav.visib...
Parsing a comma-delimited std::string [duplicate]
...csv_reader(): std::ctype<char>(get_table()) {}
static std::ctype_base::mask const* get_table() {
static std::vector<std::ctype_base::mask> rc(table_size, std::ctype_base::mask());
rc[','] = std::ctype_base::space;
rc['\n'] = std::ctype_base::space;
rc...
Send attachments with PHP Mail()?
...age';
$content = file_get_contents($file);
$content = chunk_split(base64_encode($content));
// a random hash will be necessary to send mixed content
$separator = md5(time());
// carriage return type (RFC)
$eol = "\r\n";
// main header (multipart mandatory)
$header...
How do I cast a variable in Scala?
...already patternmatched but lost reference to the casted value: <code>base match { case MyConcrete(value) => base.asInstanceOf[MyConcrete].something(value) } </code>, is there a way to get 'base' casted to MyConcrete even if want to extract "value" by exploiting the 'unapply' call perf...
Fully custom validation error message with Rails
...(especially in non-english languages)? Do I really need to use errors.add :base, msg? I'd like to know which column the error is about, so I can display it at the correct form field.
– panzi
Feb 27 '13 at 18:34
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Why do we not have a virtual constructor in C++?
... representing the class around instead of making your own), C++ is a class based language, and does not have objects representing any of the language's constructs. The class does not exist as an object at runtime, so you can't call a virtual method on it.
This fits with the 'you don't pay for what ...