大约有 40,000 项符合查询结果（耗时：0.0832秒） [XML]
Different floating point result with optimization enabled - compiler bug?
...
Intel x86 processors use 80-bit extended precision internally, whereas double is normally 64-bit wide. Different optimization levels affect how often floating point values from CPU get saved into memory and thus rounded from 80-bit precision to 64-bit precision.
Use the -ffloat-st...
What's the best way to convert a number to a string in JavaScript? [closed]
...
like this:
var foo = 45;
var bar = '' + foo;
Actually, even though I typically do it like this for simple convenience, over 1,000s of iterations it appears for raw speed there is an advantage for .toString()
See Performance tests here (not by me, but found when I went to w...
How to use OpenFileDialog to select a folder?
...
Basically you need the FolderBrowserDialog class:
Prompts the user to select a folder. This class cannot be inherited.
Example:
using(var fbd = new FolderBrowserDialog())
{
DialogResult result = fbd.ShowDialog();
i...
What is the difference between gravity and layout_gravity in Android?
...
Basically, everything with layout_ defines something that effects the elements outside.
– Triang3l
Jun 28 '13 at 10:26
...
What is the difference between a thread and a fiber?
...
In the most simple terms, threads are generally considered to be preemptive (although this may not always be true, depending on the operating system) while fibers are considered to be light-weight, cooperative threads. Both are separate execution paths for your applic...
What exactly is LLVM?
I keep hearing about LLVM all the time. It's in Perl, then it's in Haskell, then someone uses it in some other language? What is it?
...
Imitate Facebook hide/show expanding/contracting Navigation Bar
...OS7 Facebook iPhone app, when the user scrolls up the navigationBar gradually hides itself to a point where it completely vanishes. Then when the user scrolls down the navigationBar gradually shows itself.
...
Find size of an array in Perl
...er this to be the standard way to get an array's size.
The second way actually returns the last index of the array, which is not (usually) the same as the array size.
share
|
improve this answer
...
How do I automatically scroll to the bottom of a multiline text box?
...I am adding new lines of text to it. I would like the textbox to automatically scroll to the bottom-most entry (the newest one) whenever a new line is added. How do I accomplish this?
...
How can I check file size in Python?
...locks by the block size, but I'm still searching how to get it programmatically and cross-platform (not via tune2fs etc.)
– Tomasz Gandor
Apr 22 '16 at 20:56
add a comment
...