Member predicate Declaration::getTemplateArgument

Gets the template argument at index index used to instantiate this declaration from a template, if any.

For example:

template<typename T, T X> class Foo;

Will have getTemplateArgument(0) return T, and getTemplateArgument(1) return X.

Foo<int, 1> bar;

Will have getTemplateArgument(0) return int, and getTemplateArgument(1) return 1.