| 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 | |||||||||||||||||||||||||||||||
| Other formatting | |||||||||||||||||||||||||||||||
| Whitespace processing | |||||||||||||||||||||||||||||||
| Output flushing | |||||||||||||||||||||||||||||||
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| Status flags manipulation | |||||||||||||||||||||||||||||||
| Time and money I/O | |||||||||||||||||||||||||||||||
| Quoted manipulator | |||||||||||||||||||||||||||||||
(C++14) | |||||||||||||||||||||||||||||||
Manipulators are helper functions that make it possible to control input/output streams usingoperator<< oroperator>>.
The manipulators that are invoked without arguments (e.g.std::cout<<std::boolalpha; orstd::cin>>std::hex;) are implemented as functions that take a reference to a stream as their only argument. The special overloads ofbasic_ostream::operator<< andbasic_istream::operator>> accept pointers to these functions.These functions (or instantiations of function templates) are the onlyaddressable functions in the standard library.(since C++20)
The manipulators that are invoked with arguments (e.g.std::cout<<std::setw(10);) are implemented as functions returning objects of unspecified type. These manipulators define their ownoperator<< oroperator>> which perform the requested manipulation.
Defined in header <ios> | |
| switches between textual and numeric representation of booleans (function)[edit] | |
| controls whether prefix is used to indicate numeric base (function)[edit] | |
| controls whether decimal point is always included in floating-point representation (function)[edit] | |
controls whether the+ sign used with non-negative numbers(function)[edit] | |
| controls whether leading whitespace is skipped on input (function)[edit] | |
| controls whether uppercase characters are used with some output formats (function)[edit] | |
| controls whether output is flushed after each operation (function)[edit] | |
| sets the placement of fill characters (function)[edit] | |
| changes the base used for integer I/O (function)[edit] | |
(C++11)(C++11) | changes formatting used for floating-point I/O (function)[edit] |
Defined in header <istream> | |
| consumes whitespace (function template)[edit] | |
Defined in header <ostream> | |
| outputs'\0' (function template)[edit] | |
| flushes the output stream (function template)[edit] | |
| outputs'\n' and flushes the output stream (function template)[edit] | |
(C++20) | controls whether a stream'sbasic_syncbuf emits on flush (function template)[edit] |
(C++20) | flushes a stream and emits the content if it is using abasic_syncbuf (function template)[edit] |
Defined in header <iomanip> | |
| clears the specified ios_base flags (function)[edit] | |
sets the specifiedios_base flags(function)[edit] | |
| changes the base used for integer I/O (function)[edit] | |
| changes the fill character (function template)[edit] | |
| changes floating-point precision (function)[edit] | |
| changes the width of the next input/output field (function)[edit] | |
(C++11) | parses a monetary value (function template)[edit] |
(C++11) | formats and outputs a monetary value (function template)[edit] |
(C++11) | parses a date/time value of specified format (function template)[edit] |
(C++11) | formats and outputs a date/time value according to the specified format (function template)[edit] |
(C++14) | inserts and extracts quoted strings with embedded spaces (function template)[edit] |
