In the terminology used by the UGC NET August 2016 Paper II source, a function…

2016

In the terminology used by the UGC NET August 2016 Paper II source, a function template in C++ provides how many levels of generalization?

Answer: C. 2 — ConceptA C++ function template is a generic definition from which a family of concrete functions can be instantiated. The phrase “levels of generalization” is…

  1. A.

    4

  2. B.

    3

  3. C.

    2

  4. D.

    1

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Show answer & explanation

Correct answer: C

Concept

A C++ function template is a generic definition from which a family of concrete functions can be instantiated.

The phrase “levels of generalization” is historical exam terminology, not a formal count defined by the C++ standard; this item must therefore be read in the convention of its cited source.

Application

  • The cited UGC NET item and multiple exact-item answer compilations identify the displayed value 2.

  • Under the source’s simplified explanation, template<typename T> represents type-based parameterization and template<int N> represents compile-time value-based parameterization.

Cross-check and contrast

  • The value 4 is a different count from the source-keyed result.

  • The value 3 is a different count from the source-keyed result.

  • The value 2 is the value identified in the source answer.

  • The value 1 is a different count from the source-keyed result.

Modern C++ also permits template-template parameters, so that feature should not be used to invent a universal “level” count; the result here is explicitly the historical source convention.

Result

The source-keyed number of levels of generalization is 2.

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