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How to navigate through a vector using iterators? (C++)
...e following is an example of a typical access pattern (earlier versions of C++):
int sum = 0;
using Iter = std::vector<int>::const_iterator;
for (Iter it = vec.begin(); it!=vec.end(); ++it) {
sum += *it;
}
The advantage of using iterator is that you can apply the same pattern with other...
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How are GCC and g++ bootstrapped?
...any case the B compiler was written in assembly. Similarly, the first ever C++ compiler (CPre/Cfront, 1979-1983) were probably first implemented in C, then rewritten in C++.
When you compile GCC or any other self-hosting compiler, the full order of building is:
Build new version of GCC with exist...
How to easily map c++ enums to strings
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Actually this answer is largely obsolete with C++11.
– Alastair
Jan 27 '15 at 14:28
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What is __declspec and when do I need to use it?
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This is a Microsoft specific extension to the C++ language which allows you to attribute a type or function with storage class information.
Documentation
__declspec (C++)
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How do you copy the contents of an array to a std::vector in C++ without looping?
...st an iterator, and the vector assignment would be failry general (and the C++/STL way).
– MP24
Nov 6 '08 at 21:18
6
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Why do we need virtual functions in C++?
I'm learning C++ and I'm just getting into virtual functions.
26 Answers
26
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C++ SFINAE examples?
... @akim: yeah its what I thought -> C99. This is not allowed in C++, here is what you get with a modern compiler : error C2466: cannot allocate an array of constant size 0
– v.oddou
Jun 16 '14 at 1:31
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How can I get a file's size in C++? [duplicate]
...uestion to this one .
What is the most common way to get the file size in C++?
Before answering, make sure it is portable (may be executed on Unix, Mac and Windows),
reliable, easy to understand and without library dependencies (no boost or qt, but for instance glib is ok since it is portable libra...
Learn C first before learning Objective-C [closed]
...xample is a brilliant feature)... and I really like Obj-C (much more than C++! I hate the C++ syntax and some language features are plain overkill and lead to bad development patterns IMHO); however, when I sometimes re-write Obj-C code of my colleagues (and I really only do so, if I think this is ...