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How do I clone a generic List in Java?
...ut it is worth noting that ArrayList.clone will perform a shallow copy, so if there were mutable objects in the list, they will not be cloned (and changing one in one list will change that one in the other list as well.
– pkaeding
Sep 10 '08 at 18:25
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std::string length() and size() member functions
...ed length() for std::string (I always used size() ). Is there any specific reason for having this method in std::string class? I read both MSDN and CppRefernce, and they seem to indicate that there is no difference between size() and length() . If that is so, isn't it making more confusing...
Observer Design Pattern vs “Listeners”
... really the same thing as Listeners found in various toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
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how to change namespace of entire project?
I'm modifying demo application from this article: http://msdn.microsoft.com/en-us/magazine/dd419663.aspx
10 Answers
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Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”
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This problem can happen if different versions of g++ and gcc are installed.
g++ --version
gcc --version
If these don't give the result, you probably have multiple versions of gcc installed. You can check by using:
dpkg -l | grep gcc |...
内存调试技巧：C 语言最大难点揭秘 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ar *filename)
{
FILE *fp;
fp = fopen(filename, "r");
if (fp) {
...
} else {
...
}
return fp;
}
/*******
* ...
*
* Note that the return value of get_message points to a
* fixed memory location. Do NOT free() it; remember to
* ...
What is Data URI support like in major email client software?
...m curious why Outlook 2003 works but not any of the later versions. Also, if Chrome the browser shows data URIs why such a link in email does not show correctly in the same Chrome browser.
– Old Geezer
Dec 16 '13 at 0:49
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How to fight tons of unresolved variables warning in Webstorm?
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All other answers are incorrect for the general case. What if you don't get data as a parameter? You don't have JSDoc then:
function niceApiCall(parameters) {
const result = await ... // HTTP call to the API here
for (const e of result.entries) {
.. // decorate each entry i...
Where is the warnings screen option in Android Studio?
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If, on the toolbar, you click Analyze -> Inspect Code; then in the window that pops up select how much of your project you want to inspect (I usually do Whole Project, but you might want to select a specific module), then ...
How to get a list of properties with a given attribute?
...ustomAttributes; however, the attribute is instantiated, which isn't free. If you don't need to check specific values of the attribute, IsDefined is cheaper. And in 4.5, there are ways to check the instantiation data without actually creating any attribute instances (although this is intended for ve...