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cppdraft/iostreams/limits/pos.md

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+[iostreams.limits.pos]
+
+# 31 Input/output library [[input.output]](./#input.output)
+
+## 31.2 Iostreams requirements [[iostreams.requirements]](iostreams.requirements#iostreams.limits.pos)
+
+### 31.2.3 Positioning type limitations [iostreams.limits.pos]
+
+[1](#1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L97)
+
+The classes of [[input.output]](input.output "31 Input/output library") with template argumentscharT andtraits behave as described iftraits​::​pos_type andtraits​::​off_type arestreampos andstreamoff respectively[.](#1.sentence-1)
+
+Except as noted explicitly below, their behavior whentraits​::​pos_type andtraits​::​off_type are other types isimplementation-defined[.](#1.sentence-2)
+
+[2](#2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L119)
+
+[*Note [1](#note-1)*:
+
+For each of the specializations of char_traits defined in[[char.traits.specializations]](char.traits.specializations "27.2.4 char_­traits specializations"),state_type denotes mbstate_t,pos_type denotes fpos<mbstate_t>,
+and off_type denotes streamoff[.](#2.sentence-1)
+
+— *end note*]
+
+[3](#3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L128)
+
+In the classes of [[input.output]](input.output "31 Input/output library"), a template parameter with namecharT represents a member of the set of types containing char, wchar_t,
+and any other implementation-defined
+character container types ([[defns.character.container]](defns.character.container "3.10 character container type"))
+that meet the requirements for a character on which any of
+the iostream components can be instantiated[.](#3.sentence-1)