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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...
How to use a switch case 'or' in PHP
...1 to 100 this would work perfectly
$r1 = range(1, 100);
$r2 = range(100, 200);
$v = 76;
switch (true) {
case in_array($v, $r1) :
echo 'the value is in range 1 to 100';
break;
case in_array($v, $r2) :
echo 'the value is in range 100 to 200';
break;
}
...
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...
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:
...
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
...
Difference between a virtual function and a pure virtual function [duplicate]
...f they do not, they too will become abstract.
An interesting 'feature' of C++ is that a class can define a pure virtual function that has an implementation.
(What that's good for is debatable.)
Note that C++11 brought a new use for the delete and default keywords which looks similar to the synt...
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 ...
Named placeholders in string formatting
...ld make one single pass through the format string.
– 200_success
May 15 '18 at 14:24
@200_success Yes good point talki...
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.
...
Visual C++: How to disable specific linker warnings?
..." configuraton, I edited:
Properties->Configuration Properties -> C/C++ -> Output Files -> Program Database File Name from
$(IntDir)vc$(PlatformToolsetVersion).pdb
to be the following value:
$(OutDir)vc$(PlatformToolsetVersion)D$(ProjectName).pdb
Now rather than somewhere in the int...