tmp/tmprhp2itwz/{from.md → to.md}
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#### Deducing template arguments from a function declaration <a id="temp.deduct.decl">[[temp.deduct.decl]]</a>
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In a declaration whose *declarator-id* refers to a specialization of a
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function template, template argument deduction is performed to identify
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the specialization to which the declaration refers. Specifically, this
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is done for explicit instantiations
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specializations
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[[temp.friend]]
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function template specialization matches a placement `operator new` (
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[[basic.stc.dynamic.deallocation]],
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`P` is the type of the function template being considered as a potential
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match and `A` is either the function type from the declaration or the
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type of the deallocation function that would match the placement
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`operator new` as described in [[expr.new]]. The deduction is done as
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described in [[temp.deduct.type]].
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If, for the set of function templates so considered, there is either no
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match or more than one match after partial ordering has been
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#### Deducing template arguments from a function declaration <a id="temp.deduct.decl">[[temp.deduct.decl]]</a>
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In a declaration whose *declarator-id* refers to a specialization of a
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function template, template argument deduction is performed to identify
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the specialization to which the declaration refers. Specifically, this
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is done for explicit instantiations [[temp.explicit]], explicit
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specializations [[temp.expl.spec]], and certain friend declarations
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[[temp.friend]]. This is also done to determine whether a deallocation
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function template specialization matches a placement `operator new` (
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[[basic.stc.dynamic.deallocation]], [[expr.new]]). In all these cases,
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`P` is the type of the function template being considered as a potential
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match and `A` is either the function type from the declaration or the
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type of the deallocation function that would match the placement
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`operator new` as described in [[expr.new]]. The deduction is done as
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described in [[temp.deduct.type]].
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If, for the set of function templates so considered, there is either no
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match or more than one match after partial ordering has been considered
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[[temp.func.order]], deduction fails and, in the declaration cases, the
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program is ill-formed.
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