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);
.
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:
|
sp
on success or pos_type(off_type(-1))
on failure.
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()
.
invokes seekpos() (public member function of std::basic_streambuf<CharT,Traits> ) |
|
[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> ) |
[virtual] | repositions the next pointer in the input sequence, output sequence, or both using absolute addressing (virtual protected member function of std::strstreambuf ) |
© cppreference.com
Licensed under the Creative Commons Attribution-ShareAlike Unported License v3.0.
https://en.cppreference.com/w/cpp/io/basic_spanbuf/seekpos