大约有 4,500 项符合查询结果（耗时：0.0172秒） [XML]
Why does this loop produce “warning: iteration 3u invokes undefined behavior” and output more than 4
... anything can happen, and discussing why does it happen under the rules of C++ doesn't make sense.
C++11 draft N3337: §5.4:1
If during the evaluation of an expression, the result is not mathematically defined or not in the range of
representable values for its type, the behavior is undefin...
What is The Rule of Three?
...
Introduction
C++ treats variables of user-defined types with value semantics.
This means that objects are implicitly copied in various contexts,
and we should understand what "copying an object" actually means.
Let us consider a simple ex...
Implements vs extends: When to use? What's the difference?
... the class that "implements" the interface can implement the methods. The C++ equivalent of an interface would be an abstract class (not EXACTLY the same but pretty much).
Also java doesn't support multiple inheritance for classes. This is solved by using multiple interfaces.
public interface Exam...
STL or Qt containers?
...mplementation across operating systems. A STL implementation must obey the C++ standard, but
is otherwise free to do as it pleases (see the std::string COW controversy). Some STL implementations are especially
bad.
provide hashes, which are not available unless you use TR1
The QTL has a different ...
What's the rationale for null terminated strings?
As much as I love C and C++, I can't help but scratch my head at the choice of null terminated strings:
18 Answers
...
Is local static variable initialization thread-safe in C++11? [duplicate]
...n gcc:
Do not emit the extra code to use the routines specified in the C++ ABI for thread-safe initialization of local statics. You can use this option to reduce code size slightly in code that doesn't need to be thread-safe.
Also, have a look at the old thread Are function static variables t...
How to use stringstream to separate comma separated strings [duplicate]
...
ah, so it sounds like the problem caused by c++ ability to have a method outside of a class. And probably this is why it never lead to problem in C# / Java. But is it a good practice to have a method outside of a class? Modern languages like Kotlin don't even allow sta...
2014年腾讯代码报告—累计代码行14亿 - 创意 - 清泛网 - 专注C/C++及内核技术
...码新增量就提升一倍，仅去年1年就新增了4.7亿行。其中C++语言稳坐冠军宝座，接近1.5亿行，而Object-C凭借iOS应用的强势而日益强盛。
另外，根据图表，腾讯的程序猿男女比例为9:1，男生每月3400行，女生每月2300行。就毕业院校...
ATL创建的ActiveX(COM组件)实现JS回调 - C/C++ - 清泛网 - 专注C/C++及内核技术
...ActiveX文件上传。讨论了基本所有的技术，最后还是决定C++搞个ActiveX。。。但上传的回调费了半天劲，才搞定。代码...最近公司的产品需要使用ActiveX文件上传。讨论了基本所有的技术，最后还是决定C++搞个ActiveX。。。但上传的...
由“Pure Virtual Function Called” 考虑到的 - C/C++ - 清泛网 - 专注C/C++及内核技术
...可能在其它编译器上会出现。
一些书籍：
《Effective C++第三版》 建议不要在构造、析构时调用虚函数。
《深度探索C++对象模型》在讲解vptr部分时，也分析过在基类构造函数里调用虚函数会出现的情况，它说，这些调用都是...