std:: showpos, std:: noshowpos
|
Defined in header
<ios>
|
||
|
std::
ios_base
&
showpos
(
std::
ios_base
&
str
)
;
|
(1) | |
|
std::
ios_base
&
noshowpos
(
std::
ios_base
&
str
)
;
|
(2) | |
Enables or disables the display of the plus sign '+' in non-negative integer output. Has no effect on input.
showpos
flag in the stream
str
as if by calling
str.
setf
(
std::
ios_base
::
showpos
)
.
showpos
flag in the stream
str
as if by calling
str.
unsetf
(
std::
ios_base
::
showpos
)
.
This is an I/O manipulator, it may be called with an expression such as
out
<<
std
::
showpos
for any
out
of type
std::basic_ostream
or with an expression such as
in
>>
std
::
showpos
for any
in
of type
std::basic_istream
.
Parameters
| str | - | reference to I/O stream |
Return value
str (reference to the stream after manipulation).
Example
#include <iostream> int main() { std::cout << "showpos: " << std::showpos << 42 << ' ' << 3.14 << ' ' << 0 << '\n' << "noshowpos: " << std::noshowpos << 42 << ' ' << 3.14 << ' ' << 0 << '\n'; }
Output:
showpos: +42 +3.14 +0 noshowpos: 42 3.14 0
See also
|
clears the specified ios_base flags
(function) |
|
sets the specified
ios_base
flags
(function) |