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When to use virtual destructors?
...achieve what you would want from a virtual constructor. See parashift.com/c++-faq-lite/virtual-ctors.html
– cape1232
Oct 3 '13 at 12:58
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
...programmers to recognize and challenge their unwarranted assumptions in C, C++ and their platforms.
23 Answers
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What is the C runtime library?
... automate many common programming tasks that are not provided by the C and C++ languages."
8 Answers
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Why are unnamed namespaces used and what are their benefits?
I just joined a new C++ software project and I'm trying to understand the design. The project makes frequent use of unnamed namespaces. For example, something like this may occur in a class definition file:
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const char* concatenation
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The C way:
char buf[100];
strcpy(buf, one);
strcat(buf, two);
The C++ way:
std::string buf(one);
buf.append(two);
The compile-time way:
#define one "hello "
#define two "world"
#define concat(first, second) first second
const char* buf = concat(one, two);
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FB OpenGraph og:image not pulling images (possibly https?)
... According to the facebook debugger, the size requirement is now 200px x 200px
– braX
Feb 3 at 7:43
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Hidden features of C
...with any Microsoft product. (2) This thread never had anything to do with C++ at all. (3) There is no such thing as C++ 97.
– Ben Collins
Mar 1 '09 at 21:20
5
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What does dot (.) mean in a struct initializer?
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Does the dot initialization work in C++ too? (I need to test it)
– Gabriel Staples
Apr 12 '19 at 17:22
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How to clear the canvas for redrawing
...xt.clear();
// do some more drawing
context.setTransform(-1, 0, 0, 1, 200, 200);
// do some drawing with the new transform
context.clear(true);
// draw more, still using the preserved transform
};
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Nested select statement in SQL Server
...ch are greater than the minimum value of the list. The
e.g. >ANY(100,200,300), the ANY operator will fetch all the values greater than 100.
ALL – [>ALL or ALL operator takes the list of values produced by the inner query and fetches all the values which are greater than the maximum of t...