Set the current input and/or output position relative to whence.
Declared in <bslstl_stringbuf.h>
virtual
basic_stringbuf<CHAR_TYPE, CHAR_TRAITS, ALLOCATOR>::pos_type
seekoff(
off_type offset,
std::ios_base::seekdir whence,
std::ios_base::openmode modeBitMask = ios_base::in | ios_base::out);Set the current input position or the current output position (or both) to the specified offset from the specified whence location. Optionally specify a modeBitMask indicating whether to set the current input position, current output position, or both. If whence is ios_base::beg, set the current position to the indicated offset from the beginning of the stream; if whence is ios_base::end, set the current position to the indicated offset from the end of the stream; and if whence is ios_base::cur, set the current input or output position to the indicated offset from its current position. If whence is ios_base::cur, then modeBitMask may be either ios_base::in or ios_base::out, but not both. Return the offset of the new position on success, and pos_type(off_type(-1)) otherwise.
offset of the new position, or pos_type(off_type(-1)) on failure
| Name | Description |
|---|---|
| offset | position offset relative to whence |
| whence | base position for the seek (beg, cur, or end) |
| modeBitMask | whether to adjust the input position, output position, or both |