30
Input/output library
[input.output]
30.4
Standard iostream objects
[iostream.objects]
30.4.3
Narrow stream objects
[narrow.stream.objects]
🔗
istream cin;
1
#
The object
cin
controls input from a stream buffer associated with the object
stdin
, declared in
<cstdio>
(
[cstdio.syn]
)
.
2
#
After the object
cin
is initialized,
cin.tie()
returns
&cout
.
Its state is otherwise the same as required for
basic_ios<char>::init
(
[basic.ios.cons]
)
.
🔗
ostream cout;
3
#
The object
cout
controls output to a stream buffer associated with the object
stdout
, declared in
<cstdio>
(
[cstdio.syn]
)
.
🔗
ostream cerr;
4
#
The object
cerr
controls output to a stream buffer associated with the object
stderr
, declared in
<cstdio>
(
[cstdio.syn]
)
.
5
#
After the object
cerr
is initialized,
cerr.flags() & unitbuf
is nonzero and
cerr.tie()
returns
&cout
.
Its state is otherwise the same as required for
basic_ios<char>::init
(
[basic.ios.cons]
)
.
🔗
ostream clog;
6
#
The object
clog
controls output to a stream buffer associated with the object
stderr
, declared in
<cstdio>
(
[cstdio.syn]
)
.