Question

I want to declare a class template in which one of the template parameters takes a string literal, e.g. my_class<"string">.

Can anyone give me some compilable code which declares a simple class template as described?

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Note: The previous wording of this question was rather ambiguous as to what the asker was actually trying to accomplish, and should probably have been closed as insufficiently clear. However, since then this question became multiple times referred-to as the canonical ‘string literal type parameter’ question. As such, it has been re-worded to agree with that premise.

Answer 1

Sorry, C++ does not currently support the use of string literals (or real literals) as template parameters.

But re-reading your question, is that what you are asking? You cannot say:

foo <"bar"> x;

but you can say

template <typename T>
struct foo {
   foo( T t ) {}
};

foo <const char *> f( "bar" );