Can a C Class Have a Parameterless Constructor Template?

Can Constructor Templates Exist Without Parameters?

Initial Inquiry

The concept of creating a non-template class with a template constructor with no arguments arises. The presumption is that this may conflict with the default constructor.

Understanding the Issue

Constructor templates require template arguments during instantiation. However, it is impossible to specify these arguments explicitly when calling the constructor. This is because template arguments are deduced through argument deduction.

Proposed Workaround

One proposed workaround involves creating a constructor template that takes a dummy argument of any type. While this approach allows the construction of objects without arguments, it still requires the inclusion of a dummy argument in the call.

Alternative Solution

Unfortunately, there is no way to explicitly specify template arguments for constructor templates. Therefore, the workaround described is the only viable option. However, its practical use case remains unclear.

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