std:: streamoff
|
Defined in header
<ios>
|
||
|
typedef
/*implementation-defined*/
streamoff
;
|
||
The type
std::streamoff
is an implementation-defined
signed integral
(since C++11)
type of sufficient size to represent the maximum possible file size supported by the operating system.
Typically, this is an alias for
long
long
.
(since C++11)
It is used to represent offsets from stream positions (values of type
std::fpos
). A
std::streamoff
value constructed from
-
1
is also used to represent error conditions by some of the I/O library functions.
Relationship with std::fpos
-
the difference between two
std::fpos
objects is a value of type
std::streamoff
-
a value of type
std::streamoffmay be added or subtracted from std::fpos yielding a different std::fpos .
-
a value of type
std::fpos
is implicitly convertible to
std::streamoff(the conversion result is the offset from the beginning of the file).
-
a value of type
std::fpos
is constructible from a value of type
std::streamoff
See also
|
represents absolute position in a stream or a file
(class template) |
|
|
sets the input position indicator
(public member function of
std::basic_istream<CharT,Traits>
)
|
|
|
sets the output position indicator
(public member function of
std::basic_ostream<CharT,Traits>
)
|