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What C++ Smart Pointer Implementations are available?
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C++03
std::auto_ptr - Perhaps one of the originals it suffered from first draft syndrome only providing limited garbage collection facilities. The first downside being that it calls delete upon destruction making them unacce...
How do I return multiple values from a function in C?
...bVicktor: C does not have reference semantics at all (that is exclusive to C++), so everything is a value. The two pointers solution (#2) is passing copies of the pointers into a function, which getPair then dereferences. Depending on what you're doing (OP never clarified if this is actually a C que...
App Inventor 2 LLMAI2Ext 自研拓展：接入DeepSeek、Kimi、通义千问...等国...
...很多学校在内的国内用户都有AI结合传统的App来开发具有智能App的需求，因此，必须开发拓展以接入国内大模型，对，它专门接国内大模型的，国外的不接。
拓展接口参考了原生ChatGPT组件的简洁设计，在其基础上更加简化，还...
Accessing inactive union member and undefined behavior?
...nfusion is that C explicitly permits type-punning through a union, whereas C++ (c++11) has no such permission.
c11
6.5.2.3 Structure and union members
95) If the member used to read the contents of a union object is not the same as the member last used to
store a value in the object,...
Macro vs Function in C
...olymorphic behavior, unintentional polymorphism may be difficult to avoid. C++ has a number of features such as templates to help create complex polymorphic constructs in a typesafe way without the use of macros; see Stroustrup's The C++ Programming Language for details.
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Why should I not include cpp files and instead use a header?
So I finished my first C++ programming assignment and received my grade. But according to the grading, I lost marks for including cpp files instead of compiling and linking them . I'm not too clear on what that means.
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Smart pointers: who owns the object? [closed]
C++ is all about memory ownership - aka ownership semantics .
11 Answers
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Compiler error: memset was not declared in this scope
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You should include <string.h> (or its C++ equivalent, <cstring>).
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Linking R and Julia?
...verall statistics workflow for some time yet. So I'd like to use it where C++ is mainly used in R programs: to optimize slow portions of code. Before I invest the time in learning Julia, though, I am curious what facilities there are for embedding Julia snippets in R code.
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Can I use break to exit multiple nested 'for' loops?
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AFAIK, C++ doesn't support naming loops, like Java and other languages do. You can use a goto, or create a flag value that you use. At the end of each loop check the flag value. If it is set to true, then you can break out of tha...