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Why does C++ not have reflection?
...ctives are to understand the language design decision and to identify the possibilities of reflection in C++.
14 Answers
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从Code Review 谈如何做技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...陷率会在30%左右。
对于一些关键的软件（例如安全关键系统的嵌入式软件），一般的代码审查速度约是一小时150行程序码，一小时审查数百行程序码的审查速度太快，可能无法找到程序中的问题。代码审查一般可以找到及移除...
MySQL connection not working: 2002 No such file or directory
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"The hostname localhost has a special meaning. It is bound to the use of Unix domain sockets. It is not possible to open a TCP/IP connection using the hostname localhost you must use 127.0.0.1 instead." - php.net/manual/en/mysqli.q...
Using the rJava package on Win7 64 bit with R
...o get up and running with R + rJava on Windows 7 64bit. There are several possibilities, but most have fatal flaws. Here is what worked for me:
Add jvm.dll to your PATH
rJava, the R<->Java bridge, will need jvm.dll, but R will have trouble finding that DLL. It resides in a folder like
C:\Pr...
Cross compile Go on OSX?
I am trying to cross-compile a go app on OSX to build binaries for windows and linux. I have read everything what I could find on the net. Closest example that I have found has been published on (apart from many unfinished discussions on go-nuts mailing list):
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How can I do test setup using the testing package in Go
... and
teardown is necessary around a call to m.Run. It should then call
os.Exit with the result of m.Run
It took me some time to figure out that this means that if a test contains a function func TestMain(m *testing.M) then this function will be called instead of running the test. And in this f...
How can I find out if I have Xcode commandline tools installed?
...by running command gcc --version, which gives the gcc details. I am on Mac OS X 10.13.6.
– GAURAV SRIVASTAVA
Sep 26 '18 at 21:37
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Benefit of using Parcelable instead of serializing object
...tures for live objects noted here: developer.android.com/reference/android/os/Parcel.html
– mikebabcock
Sep 26 '12 at 16:06
2
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Excel RTD(Excel Real-Time Data)实时刷新数据技术 - C/C++ - 清泛网 - 专注C/C++及内核技术
...cel中删除我们之前输入的RTD函数时触发，方法实现如下，操作就是从我们的所有请求集合中移除该TopicID对应的请求。
public void DisconnectData(int TopicID)
{
for (int i = stockDatas.Count - 1; i > 0; i--)
{
if (stockDatas[i].TopicId == To...
Standard concise way to copy a file in Java?
...FileUtils.copyFile(); it handles all the heavy lifting for you.
And as a postscript, note that recent versions of FileUtils (such as the 2.0.1 release) have added the use of NIO for copying files; NIO can significantly increase file-copying performance, in a large part because the NIO routines defe...