std::basic_spanbuf<CharT,Traits>::seekpos

 

C++

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Input/output library

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basic_spanbuf (C++23)

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basic_osyncstream (C++20)

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std::basic_spanbuf

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basic_spanbuf::basic_spanbuf (C++23)

basic_spanbuf::operator= (C++23)

basic_spanbuf::swap (C++23)

basic_spanbuf::span (C++23)

Protected member functions

basic_spanbuf::setbuf (C++23)

basic_spanbuf::seekoff (C++23)

basic_spanbuf::seekpos (C++23)

Non-member functions

swap(std::basic_spanbuf) (C++23)

 

protected: pos_type seekpos( pos_type sp, std::ios_base::openmode which =                       std::ios_base::in | std::ios_base::out ) override;		(since C++23)

Repositions the next pointer to the get and/or put area, if possible, to the position indicated by sp.

Equivalent to return seekoff(off_type(sp), std::ios_base::beg, which);.

Parameters

sp	-	stream position, such as one obtained by seekoff() or seekpos()
which	-	defines whether the input sequences, the output sequence, or both are affected. It can be one or a combination of the following constants: Constant Explanation in affect the input sequence out affect the output sequence

Return value

sp on success or pos_type(off_type(-1)) on failure.

Notes

seekpos() is called by std::basic_streambuf::pubseekpos(), which is called by the single-argument versions of std::basic_istream::seekg() and std::basic_ostream::seekp().

See also

pubseekpos	invokes seekpos() (public member function of std::basic_streambuf<CharT,Traits>)
seekpos [virtual]	repositions the next pointer in the input sequence, output sequence, or both using absolute addressing (virtual protected member function of std::basic_stringbuf<CharT,Traits,Allocator>)
seekpos [virtual]	repositions the next pointer in the input sequence, output sequence, or both using absolute addressing (virtual protected member function of std::strstreambuf)