In what situation might explicit template specialization be used in C++? 

  • When all versions of the template should behave the same. 
  • When a specific version of a template requires different behavior. 
  • When templates are used with multiple inheritance. 
  • When we need to add more template parameters.
Explicit template specialization allows for defining a different implementation of a template for a specific type or set of types. This is particularly useful when a general template definition would be correct for most types but not for a specific type or set of types. For instance, if most types can be handled with a general algorithm, but one type requires a more optimized or different approach, explicit specialization can be used for that type.
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