std::ios_base::seekdir

From cppreference.com
typedef /*implementation defined*/ seekdir;
static constexpr seekdir beg = /*implementation defined*/

static constexpr seekdir end = /*implementation defined*/

static constexpr seekdir cur = /*implementation defined*/

Specifies file seeking direction type. The following constants are defined:

Constant Explanation
beg the beginning of a stream
end the ending of a stream
cur the current position of stream position indicator

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