| I/O manipulators | ||||
| Print functions(C++23) | ||||
| C-style I/O | ||||
| Buffers | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++20) | ||||
| Streams | ||||
| Abstractions | ||||
| File I/O | ||||
| String I/O | ||||
| Array I/O | ||||
(C++23) | ||||
(C++23) | ||||
(C++23) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
(C++98/26*) | ||||
| Synchronized Output | ||||
(C++20) | ||||
| Types | ||||
| Error category interface | ||||
(C++11) | ||||
(C++11) |
| Floating-point formatting | |||||||||||||||||||||||||||||||
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| Integer formatting | |||||||||||||||||||||||||||||||
| Boolean formatting | |||||||||||||||||||||||||||||||
| Field width and fill control | |||||||||||||||||||||||||||||||
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| Other formatting | |||||||||||||||||||||||||||||||
| Whitespace processing | |||||||||||||||||||||||||||||||
| Output flushing | |||||||||||||||||||||||||||||||
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| Status flags manipulation | |||||||||||||||||||||||||||||||
| Time and money I/O | |||||||||||||||||||||||||||||||
| Quoted manipulator | |||||||||||||||||||||||||||||||
(C++14) | |||||||||||||||||||||||||||||||
Defined in header <iomanip> | ||
template<class CharT> /*unspecified*/ setfill( CharT c); | ||
When used in an expressionout<< setfill(c) sets the fill character of the streamout toc.
Contents |
| c | - | new value for the fill character |
An object of unspecified type such that
where the functionf is defined as:
template<class CharT,class Traits>void f(std::basic_ios<CharT, Traits>& str, CharT c){// set fill character str.fill(c);}
The current fill character may be obtained withstd::ostream::fill.
Output:
default fill: [ 42]setfill('*'): [********42]The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 183 | C++98 | setbase could only be used withstreams of typestd::ostream | usable with any output character stream |
| manages the fill character (public member function of std::basic_ios<CharT,Traits>)[edit] | |
| sets the placement of fill characters (function)[edit] | |
| changes the width of the next input/output field (function)[edit] |