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Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...填充渐变色的矩形和一个图像，运行效果就是文章开头的图片。
视图CanvasView.java
1 package cn.blogjava.youxia.views;
2
3 import org.eclipse.swt.widgets.Composite;
4 import org.eclipse.ui.part.ViewPart;
5 import org.eclipse.swt.widgets.Canvas;
6 impor...
Get operating system info
...
Based on the answer by Fred-II I wanted to share my take on the getOS function, it avoids globals, merges both lists and detects the architecture (x32/x64)
/**
* @param $user_agent null
* @return string
*/
function getOS(...
Floating point vs integer calculations on modern hardware
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@JohannesSchaub-litb: SSE2 (baseline for x86-64) has packed double-precision FP. With only two 64-bit doubles per register, the potential speedup is smaller than float for code that vectorizes well. Scalar float and double use XMM registers on x86-64,...
Unable to execute dex: GC overhead limit exceeded in Eclipse
...s
-Dosgi.requiredJavaVersion=1.6
-XX:MaxPermSize=256m
-Xms512m
-Xmx1024m
based on the answer marked as correct, changing
-XX:MaxPermSize=256m
-Xms512m
-Xmx1024m
and:
--launcher.XXMaxPermSize
1024m
share
|
...
dispatch_after - GCD in Swift?
... with this answer, I had already compensated for its loss by writing a GCD-based cancelable timer (using a dispatch_source_t, because that's something you can cancel).
– matt
Dec 1 '15 at 16:43
...
Browsing Folders in MSYS
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
Generating a SHA-256 hash from the Linux command line
...
For the sha256 hash in base64, use:
echo -n foo | openssl dgst -binary -sha1 | openssl base64
Example
echo -n foo | openssl dgst -binary -sha1 | openssl base64
C+7Hteo/D9vJXQ3UfzxbwnXaijM=
...
Why does volatile exist?
... @curiousguy it did not decide wrongly. It made the correct deduction based on the information given. If you fail to mark something volatile, the compiler is free to assume that it is not volatile. That's what the compiler does when optimizing code. If there is more information, namely, that sa...
In-Place Radix Sort
... seq.length passes through the array.
void radixSort(string[] seqs, size_t base = 0) {
if(seqs.length == 0)
return;
size_t TPos = seqs.length, APos = 0;
size_t i = 0;
while(i < TPos) {
if(seqs[i][base] == 'A') {
swap(seqs[i], seqs[APos++]);
...
Is there a code obfuscator for PHP? [closed]
...tespace($infile);
// compress data
$data=gzcompress($data,9);
// encode in base64
$data=base64_encode($data);
// generate output text
$out='<?ob_start();$a=\''.$data.'\';eval(gzuncompress(base64_decode($a)));$v=ob_get_contents();ob_end_clean();?>';
// write output text
file_put_contents($outfi...