std::ios_base::setf

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C++ Standard Library
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Input/output library
I/O manipulators C-style I/O Buffers basic_streambuf basic_filebuf basic_stringbuf strstreambuf (deprecated) Streams Abstractions ios_base basic_ios basic_istream basic_ostream basic_iostream File I/O basic_ifstream basic_ofstream basic_fstream String I/O basic_istringstream basic_ostringstream basic_stringstream Array I/O istrstream (deprecated) ostrstream (deprecated) strstream (deprecated) Types streamoff streamsize fpos Error category interface iostream_category (C++11) io_errc (C++11)
std::ios_base
Member functions ios_base::ios_base ios_base::~ios_base Formatting ios_base::flags ios_base::setf ios_base::unsetf ios_base::precision ios_base::width Locales ios_base::imbue ios_base::getloc Internal extensible array ios_base::xalloc ios_base::iword ios_base::pword Miscellaneous ios_base::register_callback ios_base::sync_with_stdio Member classes ios_base::failure ios_base::Init Member types ios_base::openmode ios_base::fmtflags ios_base::iostate ios_base::seekdir ios_base::event ios_base::event_callback

fmtflags setf( fmtflags flags );	(1)
fmtflags setf( fmtflags flags, fmtflags mask );	(2)

Sets the formatting flags to specified settings.

1) Sets the formatting flags to flags

2) Clears the formatting flags under mask, and sets the cleared flags to those specified by flags. Essentially the following operation is performed (flags & mask) where fl defines the state of internal formatting flags.

Contents 1 Parameters 2 Return value 3 Example 4 See also

[edit] Parameters

flags, mask

-

new formatting setting. mask defines which flags can be altered, flags defines which flags of those to be altered should be set (others will be cleared). Both parameters can be a combination of the following constants: Constant Explanation dec use decimal base for integer I/O oct use octal base for integer I/O hex use hexadecimal base for integer I/O basefield dec|oct|hex|0. Useful for masking operations left left adjustment (adds fill characters to the right) right right adjustment (adds fill characters to the left) internal internal adjustment (adds fill characters to the internal designated point) adjustfield left|right|internal. Useful for masking operations scientific generate floating point types using scientific notation, or hex notation if combined with fixed fixed generate floating point types using fixed notation, or hex notation if combined with scientific floatfield scientific|fixed|(scientific|fixed)|0. Useful for masking operations boolalpha insert and extract bool type in alphanumeric format showbase generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O showpoint generate a decimal-point character unconditionally for floating-point number output showpos generate a + character for non-negative numeric output skipws skip leading whitespace before certain input operations unitbuf flush the output after each output operation uppercase replace certain lowercase letters with their uppercase equivalents in certain output output operations

[edit] Return value

the formatting flags before the call to the function

[edit] Example

This section is incomplete

[edit] See also

flags	manages format flags (public member function)
unsetf	clears specific format flag (public member function)