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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,...
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...
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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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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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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What is the exact problem with multiple inheritance?
...ltiple inheritance should be included into the next version of C# or Java. C++ folks, who are fortunate enough to have this ability, say that this is like giving someone a rope to eventually hang themselves.
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Variable number of arguments in C++?
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you should probably use <cstdarg> in C++ instead of <stdarg.h>
– newacct
Jan 8 '13 at 21:05
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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...