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+[streambuf.protected]
+
+# 31 Input/output library [[input.output]](./#input.output)
+
+## 31.6 Stream buffers [[stream.buffers]](stream.buffers#streambuf.protected)
+
+### 31.6.3 Class template basic_streambuf [[streambuf]](streambuf#protected)
+
+#### 31.6.3.4 Protected member functions [streambuf.protected]
+
+#### [31.6.3.4.1](#streambuf.assign) Assignment [[streambuf.assign]](streambuf.assign)
+
+[ð](#lib:operator=,basic_streambuf)
+
+`basic_streambuf& operator=(const basic_streambuf& rhs);
+`
+
+[1](#streambuf.assign-1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3426)
+
+*Postconditions*: 
+
+- [(1.1)](#streambuf.assign-1.1)
+
+eback() == rhs.eback()
+
+- [(1.2)](#streambuf.assign-1.2)
+
+gptr() == rhs.gptr()
+
+- [(1.3)](#streambuf.assign-1.3)
+
+egptr() == rhs.egptr()
+
+- [(1.4)](#streambuf.assign-1.4)
+
+pbase() == rhs.pbase()
+
+- [(1.5)](#streambuf.assign-1.5)
+
+pptr() == rhs.pptr()
+
+- [(1.6)](#streambuf.assign-1.6)
+
+epptr() == rhs.epptr()
+
+- [(1.7)](#streambuf.assign-1.7)
+
+getloc() == rhs.getloc()
+
+[2](#streambuf.assign-2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3438)
+
+*Returns*: *this[.](#streambuf.assign-2.sentence-1)
+
+[ð](#lib:swap,basic_streambuf)
+
+`void swap(basic_streambuf& rhs);
+`
+
+[3](#streambuf.assign-3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3449)
+
+*Effects*: Swaps the data members of rhs and *this[.](#streambuf.assign-3.sentence-1)
+
+#### [31.6.3.4.2](#streambuf.get.area) Get area access [[streambuf.get.area]](streambuf.get.area)
+
+[ð](#lib:eback,basic_streambuf)
+
+`char_type* eback() const;
+`
+
+[1](#streambuf.get.area-1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3463)
+
+*Returns*: The beginning pointer for the input sequence[.](#streambuf.get.area-1.sentence-1)
+
+[ð](#lib:gptr,basic_streambuf)
+
+`char_type* gptr() const;
+`
+
+[2](#streambuf.get.area-2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3474)
+
+*Returns*: The next pointer for the input sequence[.](#streambuf.get.area-2.sentence-1)
+
+[ð](#lib:egptr,basic_streambuf)
+
+`char_type* egptr() const;
+`
+
+[3](#streambuf.get.area-3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3485)
+
+*Returns*: The end pointer for the input sequence[.](#streambuf.get.area-3.sentence-1)
+
+[ð](#lib:gbump,basic_streambuf)
+
+`void gbump(int n);
+`
+
+[4](#streambuf.get.area-4)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3496)
+
+*Effects*: Adds n to the next pointer for the input sequence[.](#streambuf.get.area-4.sentence-1)
+
+[ð](#lib:setg,basic_streambuf)
+
+`void setg(char_type* gbeg, char_type* gnext, char_type* gend);
+`
+
+[5](#streambuf.get.area-5)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3507)
+
+*Preconditions*: [gbeg, gnext), [gbeg, gend), and [gnext, gend)
+are all valid ranges[.](#streambuf.get.area-5.sentence-1)
+
+[6](#streambuf.get.area-6)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3512)
+
+*Postconditions*: gbeg == eback(),gnext == gptr(),
+andgend == egptr() are all true[.](#streambuf.get.area-6.sentence-1)
+
+#### [31.6.3.4.3](#streambuf.put.area) Put area access [[streambuf.put.area]](streambuf.put.area)
+
+[ð](#lib:pbase,basic_streambuf)
+
+`char_type* pbase() const;
+`
+
+[1](#streambuf.put.area-1)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3528)
+
+*Returns*: The beginning pointer for the output sequence[.](#streambuf.put.area-1.sentence-1)
+
+[ð](#lib:pptr,basic_streambuf)
+
+`char_type* pptr() const;
+`
+
+[2](#streambuf.put.area-2)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3539)
+
+*Returns*: The next pointer for the output sequence[.](#streambuf.put.area-2.sentence-1)
+
+[ð](#lib:epptr,basic_streambuf)
+
+`char_type* epptr() const;
+`
+
+[3](#streambuf.put.area-3)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3550)
+
+*Returns*: The end pointer for the output sequence[.](#streambuf.put.area-3.sentence-1)
+
+[ð](#lib:pbump,basic_streambuf)
+
+`void pbump(int n);
+`
+
+[4](#streambuf.put.area-4)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3561)
+
+*Effects*: Adds n to the next pointer for the output sequence[.](#streambuf.put.area-4.sentence-1)
+
+[ð](#lib:setp,basic_streambuf)
+
+`void setp(char_type* pbeg, char_type* pend);
+`
+
+[5](#streambuf.put.area-5)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3572)
+
+*Preconditions*: [pbeg, pend) is a valid range[.](#streambuf.put.area-5.sentence-1)
+
+[6](#streambuf.put.area-6)
+
+[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/iostreams.tex#L3576)
+
+*Postconditions*: pbeg == pbase(),pbeg == pptr(),
+andpend == epptr() are all true[.](#streambuf.put.area-6.sentence-1)