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C++ Convert string (or char*) to wstring (or wchar_t*)
...tandard library to convert between UTF-8 and UTF-16 might give unexpected differences in the results on different platforms. For a better conversion, consider std::codecvt_utf8 as described on http://en.cppreference.com/w/cpp/locale/codecvt_utf8
Note (new):
Since the codecvt header is deprecated i...
Make a link use POST instead of GET
I'm not sure if this is even possible. But I was wondering if anyone knows how to make a hyperlink pass some variables and use POST (like a form) as opposed to GET.
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Difference between subprocess.Popen and os.system
What is the difference between subprocess.Popen() and os.system() ?
5 Answers
5
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Django migration strategy for renaming a model and relationship fields
...nameField('YetAnotherModel', 'foo', 'bar')
]
You may get some errors if you don't update the names where it's imported e.g. admin.py and even older migration files (!).
Update: As ceasaro mentions, newer versions of Django are usually able to detect and ask if a model is renamed. So try manag...
In c++ what does a tilde “~” before a function name signify?
...s out of scope or is explicitly deleted.
See https://www.ibm.com/support/knowledgecenter/en/ssw_ibm_i_74/rzarg/cplr380.htm
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Check whether or not the current thread is the main thread
...
If you want a method to be executed on the main thread, you can:
- (void)someMethod
{
dispatch_block_t block = ^{
// Code for the method goes here
};
if ([NSThread isMainThread])
{
block();
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Why hasn't functional programming taken over yet?
...pts fundamentally work against the domain being modelled, it's hard to justify using that language.
Concurrency; Plays extremely nice with the rising multi-core technology
The problem is just pushed around. With immutable data structures you have cheap thread safety at the cost of possibly wor...
What are libtool's .la file for?
...ctual file names
Library version and revision
Without depending on a specific platform implementation of libraries.
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How to read a large file - line by line?
...line'
The with statement handles opening and closing the file, including if an exception is raised in the inner block. The for line in f treats the file object f as an iterable, which automatically uses buffered I/O and memory management so you don't have to worry about large files.
There shou...
What's “tools:context” in Android layout files?
...fault. This enables features in the editor or layout preview that require knowledge of the activity, such as what the layout theme should be in the preview and where to insert onClick handlers when you make those from a quickfix
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