30 Input/output library [input.output]

30.5 Iostreams base classes [iostreams.base]

30.5.3 Class ios_­base [ios.base]

30.5.3.1 Types [ios.types]

30.5.3.1.5 Type ios_­base​::​seekdir [ios::seekdir]

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using seekdir = T4;
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The type seekdir is an enumerated type ([enumerated.types]) that contains the elements indicated in Table 106.
Table 106 — seekdir effects
Element
Meaning
beg
request a seek (for subsequent input or output) relative to the beginning of the stream
cur
request a seek relative to the current position within the sequence
end
request a seek relative to the current end of the sequence