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(How) can I count the items in an enum?
...ee an extra item in the enum, i.e.
enum foobar {foo, bar, baz, quz, FOOBAR_NR_ITEMS};
So then you can do:
int fuz[FOOBAR_NR_ITEMS];
Still not very nice though.
But of course you do realize that just the number of items in an enum is not safe, given e.g.
enum foobar {foo, bar = 5, baz, quz = ...
iphone Core Data Unresolved error while saving
...itical 'userInfo' keys.
Here's a version of the method I've been using. ('_sharedManagedObjectContext' is a #define for '[[[UIApplication sharedApplication] delegate] managedObjectContext]'.)
- (BOOL)saveData {
NSError *error;
if (![_sharedManagedObjectContext save:&error]) {
/...
I want to copy table contained from one database and insert onto another database table
...wered Oct 2 '13 at 21:07
HukeLau_DABAHukeLau_DABA
2,18744 gold badges2727 silver badges4747 bronze badges
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Getting a structural type with an anonymous class's methods from a macro
...ral type with the named member. */
def bar(name: String): Any = macro bar_impl
def bar_impl(c: Context)(name: c.Expr[String]) = {
import c.universe._
val anon = TypeName(c.freshName)
// next week, val q"${s: String}" = name.tree
val Literal(Constant(s: String)) = name.tree
v...
Can grep show only words that match search pattern?
... an explanation for what "\w*th\w*" * means, so I figured I'd post. \w is [_[:alnum:]], so this matches basically any "word" that contains 'th' (since \w doesn't include space). The * after the quoted section is a glob for which files (i.e., matching all files in this directory)
...
Executing Batch File in C#
...
This approach is not applicable when I run "pg_dump ... > dumpfile" which dumps a 27 GB database to dumpfile
– Paul
Oct 29 '12 at 17:28
...
How to get Twitter-Bootstrap navigation to show active link?
...g the same code over and over. I would recommend at least using the current_page? method to check the current controller/action, and would also move the code into a helper to avoid the code repetition.
– Dustin Frazier
May 9 '12 at 17:17
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How does HTTP file upload work?
...it your form (I've truncated the headers for brevity):
POST /upload?upload_progress_id=12344 HTTP/1.1
Host: localhost:3000
Content-Length: 1325
Origin: http://localhost:3000
... other headers ...
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryePkpFF7tjBAqx29L
------WebKitFormBou...
Can you define aliases for imported modules in Python?
...
import a_ridiculously_long_module_name as short_name
also works for
import module.submodule.subsubmodule as short_name
share
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Separating class code into a header and cpp file
... private, by default C++ class members are private.
// A2DD.h
#ifndef A2DD_H
#define A2DD_H
class A2DD
{
int gx;
int gy;
public:
A2DD(int x,int y);
int getSum();
};
#endif
and the implementation goes in the CPP file:
// A2DD.cpp
#include "A2DD.h"
A2DD::A2DD(int x,int y)
{
gx = x;
...