大约有 48,000 项符合查询结果（耗时：0.0631秒） [XML]
Does Internet Explorer support pushState and replaceState?
Does anybody know if Internet Explorer supports the history.pushState() and history.replaceState() methods for manipulating browser history ? Considering these are just being implemented in Firefox 4, I'm not holding my breath, but does anybody know if they're coming in IE9?
...
What does gcc's ffast-math actually do?
I understand gcc's --ffast-math flag can greatly increase speed for float ops, and goes outside of IEEE standards, but I can't seem to find information on what is really happening when it's on. Can anyone please explain some of the details and maybe give a clear example of how something would chan...
efficient circular buffer?
...e nice batteries included way. Operations for the circular buffer are O(1) and as you say the extra overhead is in C, so should still be quite fast
– John La Rooy
Nov 11 '10 at 9:38
...
Understanding checked vs unchecked exceptions in Java
...ethrow) should not be used at all. They were eliminated in C# for example, and most languages don't have them. So you can always throw a subclass of RuntimeException (unchecked exception)
However, I think checked exceptions are useful - they are used when you want to force the user of your API to t...
How to escape indicator characters (i.e. : or - ) in YAML
...ey to which I wish to assign a URL. The problem is that YAML interprets : and - characters as either creating mappings or lists, so it has a problem with the line
...
How to collapse all methods in Xcode?
...
As of Xcode 4 it seems to have changed.
command-alt-shift-left arrow will do the trick...
To fold/unfold current methods or if structures use:
Fold: command-alt-left arrow
Unfold: command-alt-right arrow
...
Rich vs Anemic Domain Model [closed]
... deciding if I should use a Rich Domain Model over an Anemic Domain Model, and looking for good examples of the two.
10 Ans...
Why do we check up to the square root of a prime number to determine if it is prime?
...
If a number n is not a prime, it can be factored into two factors a and b:
n = a * b
Now a and b can't be both greater than the square root of n, since then the product a * b would be greater than sqrt(n) * sqrt(n) = n. So in any factorization of n, at least one of the factors must be smal...
How to find if a given key exists in a C++ std::map
I'm trying to check if a given key is in a map and somewhat can't do it:
14 Answers
14...
Upgrading PHP in XAMPP for Windows?
...
Take a backup of your htdocs and data folder (subfolder of MySQL folder), reinstall upgraded version and replace those folders.
Note:
In case you have changed config files like PHP (php.ini), Apache (httpd.conf) or any other, please take back up of thos...