**Verilog**What is an instantiation template and what is it used for?What is and what does...

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Electrical Engineering

**Verilog**

What is an instantiation template and what is it used for?

What is and what does a behavior wrapper file do?

With this said how do a netlist, behavior wrapper file, andInstantiation syntax help support the HDL simulation?


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The act of creating a new definition of a function class ormember of a class from a template declaration and one or moretemplate arguments is called template instantiation The definitioncreated from a template instantiation to handle a specific set oftemplate arguments is called a specializationemplate instantiation has two forms explicit instantiation andimplicit instantiationExplicit instantiation C onlyImplicit instantiation C onlyExplicit instantiation declarationThe explicit instantiation declarations feature is introduced inthe C11 standard With this feature you can suppress theimplicit instantiation of a template specialization or its membersThe extern keyword is used to indicate explicit instantiationdeclaration The usage of extern here is different from that of astorage class specifierThe following example demonstrates this conceptsample1htemplateunion AT funcextern template union AtemplateT Afuncvoidreturn valsampleACinclude sample1htemplate union AsampleBCinclude sample1hint mainvoidreturn AfuncCopysampleBC uses the explicit instantiation definition of Afuncin sampleACIf an explicit instantiation declaration of a function or classis declared but there is no corresponding explicit instantiationdefinition anywhere in the program the compiler issues an errormessage See the following example sample2Ctemplate struct Avirtual T funcvirtual T barextern template int Afunctemplate T Afuncvoidreturn valtemplate T Abarvoidreturn valint mainvoidreturn AbarCopyWhen you use explicit instantiation declaration pay attention tothe following restrictionsYou can name a static class member in an explicit instantiationdeclaration but you cannot name a static function because a staticfunction cannot be accessed by name in other translationunitsThe explicit instantiation declaration of a class is not equivalentto the explicit instantiation declaration of each of itsmembersExplicit instantiation definitionAn explicit instantiation definition is an instantiation of atemplate specialization or its membersHere is an example of explicit instantiation definitiontemplate class Array void mf template    See Answer
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