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When should you use 'friend' in C++?
I have been reading through the C++ FAQ and was curious about the friend declaration. I personally have never used it, however I am interested in exploring the language.
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Can a C++ enum class have methods?
...'t.
I can understand that the enum class part for strongly typed enums in C++11 might seem to imply that your enum has class traits too, but it's not the case. My educated guess is that the choice of the keywords was inspired by the pattern we used before C++11 to get scoped enums:
class Foo {
pub...
Splitting templated C++ classes into .hpp/.cpp files--is it possible?
I am getting errors trying to compile a C++ template class which is split between a .hpp and .cpp file:
16 Answers
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What is this crazy C++11 syntax ==> struct : bar {} foo {};?
What could this possibly mean in C++11?
2 Answers
2
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How to print to console when using Qt
I'm using Qt4 and C++ for making some programs in computer graphics. I need to be able to print some variables in my console at run-time, not debugging, but cout doesn't seem to work even if I add the libraries. Is there a way to do this?
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Passing a 2D array to a C++ function
...ray[i][j] << '\t';
std::cout << std::endl;
}
}
In C++ passing the array by reference without losing the dimension information is probably the safest, since one needn't worry about the caller passing an incorrect dimension (compiler flags when mismatching). However, this isn'...
How does #include work in C++? [duplicate]
I have read from a codeforces blog that if we add #include <bits/stdc++.h> in a C++ program then there is no need to include any other header files. How does #include <bits/stdc++.h> work and is it ok to use it instead of including individual header files?
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C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
...ere these days.
EDIT: Someone else commented that you can also use modern C++ with std::chrono::high_resolution_clock, but that isn't guaranteed to be monotonic. Use steady_clock instead.
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Is “else if” a single keyword?
I am new to C++. I often see conditional statement like below:
8 Answers
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Where do you store your salt strings?
...e SHA-512 hash of your salted-password. You also generate a random integer 200. You then store the first 200 bytes of the salt, followed by the salted-password hash, followed by the remainder of the salt.
When authenticating a user's password input, your application will pass over the string, and a...