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Section: 22.10.17.3 [func.wrap.func] Status: CD1 Submitter: Daniel Krügler Opened: 2008-01-10 Last modified: 2016-01-28
Priority: Not Prioritized
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Discussion:
N2461 already replaced in 22.10.17.3 [func.wrap.func] it's originally proposed
(implicit) conversion operator to "unspecified-bool-type" by the new
explicit bool conversion, but the inverse conversion should also
use the new std::nullptr_t type instead of "unspecified-null-pointer-
type".
Proposed resolution:
In 22.10 [function.objects], header <functional> synopsis replace:
template<class R, class... ArgTypes> bool operator==(const function<R(ArgTypes...)>&,unspecified-null-pointer-typenullptr_t); template<class R, class... ArgTypes> bool operator==(unspecified-null-pointer-typenullptr_t , const function<R(ArgTypes...)>&); template<class R, class... ArgTypes> bool operator!=(const function<R(ArgTypes...)>&,unspecified-null-pointer-typenullptr_t); template<class R, class... ArgTypes> bool operator!=(unspecified-null-pointer-typenullptr_t , const function<R(ArgTypes...)>&);
In the class function synopsis of 22.10.17.3 [func.wrap.func] replace
function(unspecified-null-pointer-typenullptr_t); ... function& operator=(unspecified-null-pointer-typenullptr_t);
In 22.10.17.3 [func.wrap.func], "Null pointer comparisons" replace:
template <class R, class... ArgTypes> bool operator==(const function<R(ArgTypes...)>&,unspecified-null-pointer-typenullptr_t); template <class R, class... ArgTypes> bool operator==(unspecified-null-pointer-typenullptr_t , const function<R(ArgTypes...)>&); template <class R, class... ArgTypes> bool operator!=(const function<R(ArgTypes...)>&,unspecified-null-pointer-typenullptr_t); template <class R, class... ArgTypes> bool operator!=(unspecified-null-pointer-typenullptr_t , const function<R(ArgTypes...)>&);
In 22.10.17.3.2 [func.wrap.func.con], replace
function(unspecified-null-pointer-typenullptr_t); ... function& operator=(unspecified-null-pointer-typenullptr_t);
In 22.10.17.3.7 [func.wrap.func.nullptr], replace
template <class R, class... ArgTypes> bool operator==(const function<R(ArgTypes...)>& f,unspecified-null-pointer-typenullptr_t); template <class R, class... ArgTypes> bool operator==(unspecified-null-pointer-typenullptr_t , const function<R(ArgTypes...)>& f);
and replace
template <class R, class... ArgTypes> bool operator!=(const function<R(ArgTypes...)>& f,unspecified-null-pointer-typenullptr_t); template <class R, class... ArgTypes> bool operator!=(unspecified-null-pointer-typenullptr_t , const function<R(ArgTypes...)>& f);