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Can a C Template Class Have a Parameterless Constructor?

Susan Sarandon
Susan SarandonOriginal
2024-12-16 08:03:11944browse

Can a C   Template Class Have a Parameterless Constructor?

Is Template Constructor Without Parameters Possible?

In the realm of C , the question of implementing a non-template class with a template constructor without parameters arises. Although it appears logical, a fundamental conflict arises with the inherent default constructor.

The assumption aligns with the technical constraint that prevents explicitly specifying template arguments when invoking a constructor template. The argument deduction process must infer them implicitly. This is due to the grammatical structure of C , where template arguments for constructors and classes are distinct.

The suggested workaround of defining a dummy parameter in the constructor template indeed allows for its initialization, but it nevertheless requires passing an argument and does not fully resolve the underlying issue.

In summary, while the desire to create a template constructor without parameters is understandable, the technical limitations of C preclude this directly. The provided workaround offers a pragmatic solution, but it does not fully replicate the behavior of a conventional parameter-less constructor.

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