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Finding the average of a list
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As a C++ programmer, that is neat as hell and float is not ugly at all!
– lahjaton_j
Apr 22 '16 at 12:33
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QString to char* conversion
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Specifically C++ temporaries normally live until the end of the statement that creates them. So the first form in the answer is ok if it's used in-line in a function call (assuming the function doesn't store the pointer for future use) bu...
Using a dictionary to count the items in a list [duplicate]
...ation of a multiset which is not an uncommon data structure IMO. In fact, C++ has an implementation in the STL called std::multiset (also std::tr1::unordered_multiset) so Guido is not alone in his opinion of its importance.
– awesomo
Oct 18 '11 at 3:07
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Initializing a two dimensional std::vector
...BER, 4));
I should also mention uniform initialization was introduced in C++11, which permits the initialization of vector, and other containers, using {}:
std::vector<std::vector<int> > fog { { 1, 1, 1 },
{ 2, 2, 2 } };
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Get current date in milliseconds
...language you desire. Here is the list -
ActionScript (new Date()).time
C++ std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count()
C#.NET DateTimeOffset.UtcNow.ToUnixTimeMilliseconds()
Clojure (System/currentTimeMillis)
Excel / Go...
深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术
....getByte(“UTF-8”), “EUC-JP”)就可以进行编码的转换，不过C++就没那么幸运了，除非按照一定的逻辑自行实现一套编码转换的方法，当然从各方面限制来看是不太现实的。
因此，要解决此问题，需对字符集编码的原理一探究竟...
Java Annotations
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Also, are they unique to Java, is there a C++ equivalent?
No, but VB and C# have attributes which are the same thing.
Their use is quite diverse. One typical Java example, @Override has no effect on the code but it can be used by the compiler to generate a warning...
How to define a preprocessor symbol in Xcode
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For Xcode 9.4.1 and C++ project. Adding const char* Preprocessor Macros to both Debug and Release builds.
Select your project
Select Build Settings
Search "Preprocessor Macros"
Open interactive list
Add your macros and don't forget to...
Is there any performance reason to declare method parameters final in Java?
...e type, such as int, and inline them directly in the code just like with a C++ macro.
However, i have no clue if this is done in practice, but it could be done in order to save some memory.
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How to check if a file is empty in Bash?
... the shell cannot help you when you misspell, whereas a compiler like your C++ compiler can help you.
Notice incidentally that I have swapped the roles of empty.txt and full.txt, as @Matthias suggests.
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