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What are the basic rules and idioms for operator overloading?
... // ...
}
};
Usage:
foo f;
int a = f("hello");
Throughout the C++ standard library, function objects are always copied. Your own function objects should therefore be cheap to copy. If a function object absolutely needs to use data which is expensive to copy, it is better to store that d...
uint8_t can't be printed with cout
I have a weird problem about working with integers in C++.
8 Answers
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Difference: std::runtime_error vs std::exception()
...t is an abstract class (even though it is not defined as abstract class in C++ meaning of the term).
std::runtime_error is a more specialized class, descending from std::exception, intended to be thrown in case of various runtime errors. It has a dual purpose. It can be thrown by itself, or it can ...
How do I execute a command and get the output of the command within C++ using POSIX?
...king for a way to get the output of a command when it is run from within a C++ program. I have looked at using the system() function, but that will just execute a command. Here's an example of what I'm looking for:
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Iterating C++ vector from the end to the beginning
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If you have C++11 you can make use of auto.
for (auto it = my_vector.rbegin(); it != my_vector.rend(); ++it)
{
}
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techniques for obscuring sensitive strings in C++
...information (a symmetric encryption key that I want to keep private) in my C++ application. The simple approach is to do this:
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What's the purpose of using braces (i.e. {}) for a single-line if or loop?
I'm reading some lecture notes of my C++ lecturer and he wrote the following:
23 Answers
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How can I use a DLL file from Python?
...ws:
File -> New -> Project;
Installed -> Templates -> Visual C++ -> Windows -> Win32 -> Win32Project;
Next;
Application type -> DLL;
Additional options -> Empty project (select);
Additional options -> Precompiled header (unselect);
Project -> Properties -> Confi...
When would anyone use a union? Is it a remnant from the C-only days?
I have learned but don't really get unions. Every C or C++ text I go through introduces them (sometimes in passing), but they tend to give very few practical examples of why or where to use them. When would unions be useful in a modern (or even legacy) case? My only two guesses would be programming ...
C++ project organisation (with gtest, cmake and doxygen)
...general so I decided that I would start by making a simple vector class in C++. However I would like to get in to good habits from the start rather than trying to modify my workflow later on.
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