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Vagrant error: NFS is reporting that your exports file is invalid
I am trying to set up the Discourse development environment using these instructions . However when I run Vagrant I get the error:
...
What's the best way to add a drop shadow to my UIView
...view.layer.shadowColor = [UIColor blackColor].CGColor;
view.layer.shadowOffset = CGSizeMake(0.0f, 5.0f);
view.layer.shadowOpacity = 0.5f;
view.layer.shadowPath = shadowPath.CGPath;
First of all: The UIBezierPath used as shadowPath is crucial. If you don't use it, you might not notice a difference...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
... reinterpret_cast is often the weapon of choice when dealing with an API's set of opaque data types
– Class Skeleton
Aug 4 '15 at 13:09
|
sh...
What is the difference between new/delete and malloc/free?
...mentation defined.
Can add a new memory allocator to deal with low memory (set_new_handler)
operator new/delete can be overridden legally
constructor/destructor used to initialize/destroy the object
malloc/free
Allocates/release memory
Memory allocated from 'Heap'
Returns a void*
Returns NULL...
What is “callback hell” and how and why does RX solve it?
...his version is uglier than the previous one. :-)
2) When (in what kind of settings) does the "callback hell problem" occur?
When you have lots of callback functions in your code! It gets harder to work with them the more of them you have in your code and it gets particularly bad when you need to d...
MySQL load NULL values from CSV data
...o what you want. It reads the fourth field into a local variable, and then sets the actual field value to NULL, if the local variable ends up containing an empty string:
LOAD DATA INFILE '/tmp/testdata.txt'
INTO TABLE moo
FIELDS TERMINATED BY ","
LINES TERMINATED BY "\n"
(one, two, three, @vfour, f...
Can Objective-C switch on NSString?
...
You could set up a dictionary of blocks, like this:
NSString *lookup = @"Hearts"; // The value you want to switch on
typedef void (^CaseBlock)();
// Squint and this looks like a proper switch!
NSDictionary *d = @{
@"Diamonds":
...
How to check if one DateTime is greater than the other in C#
...me is when you have a new object, with Start and End dates and you have to set the Start date ( at this stage your End date has the minimum date value of 01/01/0001) - this solution did pass all my unit tests:
public DateTime Start
{
get { return _start; }
set
{
...
Ruby Bundle Symbol not found: _SSLv2_client_method (LoadError)
...9.3.
rvm reinstall ruby-1.9.3-p545
After reinstalling, I ran:
$ rvm gemset pristine
If you see any errors restoring your gemset, your best option will be to empty the gemset and rebuild it.
rvm gemset use mygemset
rvm gemset empty mygemset
gem install bundler
bundle install
If you have mult...
Sorting an IList in C#
...DER BY** :
public class Employee
{
public string Id { get; set; }
public string Name { get; set; }
}
private static IList<Employee> GetItems()
{
List<Employee> lst = new List<Employee>();
lst.Add(new Employee { Id = "1"...