General Variable
Hello,
I was wondering if there can be a general type of variable in c++, that if the input, for example, is int, that variable will become an int.
I was wondering if there can be a general type of variable in c++, that if the input, for example, is int, that variable will become an int.
In C++17, we have std::any :
http://en.cppreference.com/w/cpp/utility/any
If using a compiler that doesn't support that, you can use boost::any from the boost libraries:
https://theboostcpplibraries.com/boost.any
http://en.cppreference.com/w/cpp/utility/any
If using a compiler that doesn't support that, you can use boost::any from the boost libraries:
https://theboostcpplibraries.com/boost.any
yes, but the template has to know the type at compile time...
The trouble with this is all the guesswork.
12AB ... is it a string, or a hex number?
This sort of thing feels like a good way to make code slower and more convoluted generally. Strong types are good. Weak types are extremely difficult to work with... I spent years fighting a matlab over that, where a variable that was a string a min ago is now a double then its a matrix then its a loop counter and now its a string again...
The trouble with this is all the guesswork.
12AB ... is it a string, or a hex number?
This sort of thing feels like a good way to make code slower and more convoluted generally. Strong types are good. Weak types are extremely difficult to work with... I spent years fighting a matlab over that, where a variable that was a string a min ago is now a double then its a matrix then its a loop counter and now its a string again...
Last edited on
| Maybe auto is what you're looking for? See: http://en.cppreference.com/w/cpp/language/auto |
Yes this might be what I was Looking for, thanks!
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