CODEWITHSUNDEEP
c++c++11types
ar2015
ar2015

Reputation: 6140

Define a type if does not exist

What I am looking for seems to be basic but I have no idea about checking types without producing error.

How can I check if type uint does not exist then define it as unsigned int?

Upvotes: 1

Views: 266

Answers (1)

sp2danny
sp2danny

Reputation: 7644

Typically, you would put it in your own namespace.
You can using that namespace, if there is a collision the user can specify with the scope operator (::). Often, library vendors let user have the option to not using the namespace with a macro. (Or more commonly the reverse)

Checking if uint already exist, and conditionally define it if it does not, can only be done if you can be sure it is defined as a macro, something that rarely holds in c++

If it is a fundamental type, you can use for example std::uint32_t from <cstdint>.

Upvotes: 1

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