std:: streamsize
From cppreference.com
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Defined in header
<ios>
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typedef
/*implementation-defined*/
streamsize
;
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The type
std::streamsize
is a signed integral type used to represent the number of characters transferred in an I/O operation or the size of an I/O buffer. It is used as a signed counterpart of
std::size_t
, similar to the POSIX type
ssize_t
.
Notes
Except in the constructors of
std::strstreambuf
, negative values of
std::streamsize
are never used.
Example
Run this code
#include <iostream> #include <type_traits> static_assert(std::is_signed_v<std::streamsize>); int main() { std::cout << sizeof(std::streamsize) << '\n'; }
Possible output:
8
See also
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returns number of characters extracted by last unformatted input operation
(public member function of
std::basic_istream<CharT,Traits>
)
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extracts and discards characters until the given character is found
(public member function of
std::basic_istream<CharT,Traits>
)
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extracts blocks of characters
(public member function of
std::basic_istream<CharT,Traits>
)
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inserts blocks of characters
(public member function of
std::basic_ostream<CharT,Traits>
)
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