std::ios_base::flags - cppreference.com

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fmtflagsflags()const; (1) fmtflagsflags(fmtflagsflags); (2) Manages format flags.

1) returns current formatting setting

2) replaces current settings with given ones.

Parameters

flags - new formatting setting. It can be a combination of

formatting flags

constants. Formatting flagsConstant Explanation

dec

use decimal base for integer I/O: see

std::dec

oct

use octal base for integer I/O: see

std::oct

hex

use hexadecimal base for integer I/O: see

std::hex

basefield

dec|oct|hex. Useful for masking operations

left

left adjustment (adds fill characters to the right): see

std::left

right

right adjustment (adds fill characters to the left): see

std::right

internal

internal adjustment (adds fill characters to the internal designated point): see

std::internal

adjustfield

left|right|internal. Useful for masking operations

scientific

generate floating point types using scientific notation, or hex notation if combined with fixed: see

std::scientific

fixed

generate floating point types using fixed notation, or hex notation if combined with scientific: see

std::fixed

floatfield

scientific|fixed. Useful for masking operations

boolalpha

insert and extract bool type in alphanumeric format: see

std::boolalpha

showbase

generate a prefix indicating the numeric base for integer output, require the currency indicator in monetary I/O: see

std::showbase

showpoint

generate a decimal-point character unconditionally for floating-point number output: see

std::showpoint

showpos

generate a + character for non-negative numeric output: see

std::showpos

skipws

skip leading whitespace before certain input operations: see

std::skipws

unitbuf

flush the output after each output operation: see

std::unitbuf

uppercase

replace certain lowercase letters with their uppercase equivalents in certain output operations: see

std::uppercase

Return value

the formatting flags before the call to the function

Example