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What exactly is Python's file.flush() doing?
...instructed.
Addendum in 2018.
Note that disks with cache mechanisms is now much more common than back in 2013, so now there are even more levels of caching and buffers involved. I assume these buffers will be handled by the sync/flush calls as well, but I don't really know.
...
Multiple commands in gdb separated by some sort of delimiter ';'?
...fter the last is \n.
set logging off
Done writing to gdb.txt; that file now contains a valid GDB command script:
#gdb#
whatis a
whatis b
whatis c
#gdb#
source gdb.txt
GDB now executes commands in the script which it just generated, producing the expected results:
type = ...
Why do we need a pure virtual destructor in C++?
...class Base
{
public:
Base();
virtual ~Base() = 0; // Pure virtual, now no one can create the Base Object directly
};
Base::Base() { cout << "Base Constructor" << endl; }
Base::~Base() { cout << "Base Destructor" << endl; }
class Derived : public Base
{
public:
...
How to replace captured groups only?
...e elegant solution >.< Nevertheless, I can move forward with my code now!
– mix3d
Mar 29 '16 at 22:16
9
...
Returning JSON from PHP to JavaScript?
...g together JSON by hand, under the assumption that was their only choice. Knowing it wasn't their only choice was a suitable solution. There is no obligation that the end result of that JSON will be emitted as HTTP response. The "add a header" information, while useful for one situation, is not goin...
In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
...ke AJAX does -- but long polling was created when WebSockets didn't exist. Now due to WebSockets,
long polling is going away.
WebRTC allows for peer-to-peer communication.
I recommend learning WebSockets.
Comparison:
of different communication techniques on the web
AJAX - request → respons...
Is it better to reuse a StringBuilder in a loop?
...
Okay, I now understand what's going on, and it does make sense.
I was under the impression that toString just passed the underlying char[] into a String constructor which didn't take a copy. A copy would then be made on the next "wr...
Connect to a heroku database with pgadmin
I would like to manage my heroku database with pgadmin client. By now, I've been doing this with psql .
When I use data from heroku pg:credentials to connect de DB using pgadmin , I obtain:
...
Template default arguments
... @Pubby The standard committee asked themselves the same, I guess. Now, with C++17, the <> is no more necessary in this case. Check out my answer for more details.
– Paolo M
Jun 21 '18 at 14:27
...
How to document Python code with doxygen [closed]
...f Doxygen and unify the documentation system in Sphinx. Awesome in theory. Now, in practice, the last time I checked the project wasn't ready for production.
pydoctor*: Very particular. Generates its own output. It has some basic integration with Sphinx, and some nice features.
...