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Check if a class has a member function of a given signature
...oid ReportMemUsage(const TMap& m, std::true_type)
{
// We may call used_memory() on m here.
}
template<typename TMap>
void ReportMemUsage(const TMap&, std::false_type)
{
}
template<typename TMap>
void ReportMemUsage(const TMap& m)
{
ReportMemUsage(m,
std:...
The developers of this app have not set up this app properly for Facebook Login?
...he respective app from the drop down.
Go to 'Status & Review' from the table in the left side of the page.
Do you want to make this app and all its live features available to the general public? - Select switch to set YES/NO value.
Update:
The YES/NO button will be disabled until and unless y...
How to use the pass statement?
...
I really don't think this properly answers the question. Citing one possible use for something, even if it is the most common use for it, is not the same as explaining what it is for.
– Schilcote
...
What to put in a python module docstring? [closed]
...ngs; the module's own docstring should describe them very summarily (if at all) and rather concentrate on a concise summary of what the module as a whole can do for you, ideally with some doctested examples (just like functions and classes ideally should have doctested examples in their docstrings)....
How to check if a string is a valid hex color representation?
..., you can prefix number literals to get a number in other radii.
Here's a table for clarification:
╭─────────────┬────────────┬────────┬───────────────────╮
│ Radix │ Charact...
How did this person code “Hello World” with Microsoft Paint?
...aft the whole thing with notepad - with the color chooser dialog, an ASCII table and a basic knowledge of the DIB format it can be done, but it would be much much slower and error-prone.
More info about the DIB format
There are RLE compressed DIBs, but in this case uncompressed bitmaps are used...
How do you programmatically set an attribute?
...
Damn shame it doesn't work in all cases, as that would be really useful, for example, for adding the dirty attribute to user input...
– brice
Feb 28 '12 at 18:32
...
Maximum filename length in NTFS (Windows XP and Windows Vista)?
I'm designing a database table which will hold filenames of uploaded files. What is the maximum length of a filename in NTFS as used by Windows XP or Vista?
...
What are metaclasses in Python?
...ass is an instance of a metaclass.
While in Python you can use arbitrary callables for metaclasses (like Jerub shows), the better approach is to make it an actual class itself. type is the usual metaclass in Python. type is itself a class, and it is its own type. You won't be able to recreate somet...
GCM with PHP (Google Cloud Messaging)
...hat recipient. The possible values are the same as documented in the above table, plus "Unavailable" (meaning GCM servers were busy and could not process the message for that particular recipient, so it could be retried).
I've got a service set up already that seems to be working (ish), and so far ...