大约有 30,000 项符合查询结果(耗时:0.0545秒) [XML]
When to use std::forward to forward arguments?
... that the const function is called; and this then throws an exception (the idea being this was a locked account!)
If we have a non const account then we should be able to modify the account.
#include <iostream>
#include <string>
#include <sstream> // std::stringstream
#include &l...
Ignoring time zones altogether in Rails and PostgreSQL
...when applied to timestamp
Daylight Saving Time is not among the brightest ideas humanity ever came up with.
② Row 9, marked as loaded footgun works for me, but only by coincidence. If you explicitly cast a literal to timestamp [without time zone], any time zone offset is ignored! Only the bare ti...
ASP.NET Identity's default Password Hasher - How does it work and is it secure?
...calling SHA1 1000 times means that the
attacker also needs to do this. The idea being that unless they have
time on a supercomputer they won’t have enough resource to brute
force the password from the hash. It would massively slow down the time to generate a hash table for a given salt.
...
What is a lambda expression in C++11?
...tivity was almost 1 year ago? Anyway, you're contributing some interesting ideas I haven't seen before!
– Piotr99
Mar 1 '13 at 8:32
7
...
reference assignment is atomic so why is Interlocked.Exchange(ref Object, Object) needed?
...
@John: That's a good idea. I try to treat threads like cheap processes: they are there to do a job and produce a result, not to run around being a second thread of control inside the main program's data structures. But if the amount of work the ...
What's the fastest way to merge/join data.frames in R?
...sql select ever runs and that, in part, accounts for why its so slow. The idea of sqldf is that the data frames in your R session constitute the data base, not the tables in sqlite. Thus each time the code refers to an unqualified table name it will look in your R workspace for it -- not in sqlite...
Do I need a Global.asax.cs file at all if I'm using an OWIN Startup.cs class and move all configurat
...wrongfully expected the dependency to include everything to run on IIS. No idea why I thought that since I wanted an Owin startup to uncouple the IIS dependency in the first place.
– Pluc
Dec 9 '15 at 16:53
...
What is “Argument-Dependent Lookup” (aka ADL, or “Koenig Lookup”)?
...he why, and only then go to the how.
When namespaces were introduced, the idea was to have everything defined in namespaces, so that separate libraries don't interfere with each other. However that introduced a problem with operators. Look for example at the following code:
namespace N
{
class X...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...e its purpose is migration to wchar_t, which we've seen above isn't a good idea, there is no value whatsoever in using TCHAR.
1. Characters which are representable in wchar_t strings but which are not supported in any locale are not required to be represented with a single wchar_t value. This me...
Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?
...m that perspective. Just from a "looking back, maybe it wasn't such a good idea"-perspective. Guess I should have been clearer :)
– harold
Jun 24 '12 at 12:12
...
