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Element

Effect(s) if set

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boolalpha

insert and extract bool type in alphabetic format

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dec

converts integer input or generates integer output in decimal base

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fixed

generate floating-point output in fixed-point notation

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hex

converts integer input or generates integer output in hexadecimal base

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internal

adds fill characters at a designated internal point in certain generated output, or identical to right if no such point is designated

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left

adds fill characters on the right (final positions) of certain generated output

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oct

converts integer input or generates integer output in octal base

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right

adds fill characters on the left (initial positions) of certain generated output

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scientific

generates floating-point output in scientific notation

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showbase

generates a prefix indicating the numeric base of generated integer output

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showpoint

generates a decimal-point character unconditionally in generated floating-point output

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showpos

generates a + sign in non-negative generated numeric output

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skipws

skips leading whitespace before certain input operations

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unitbuf

flushes output after each output operation

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uppercase

replaces certain lowercase letters with their uppercase equivalents in generated output