Created on 2018-04-04.00:00:00, last changed 2018-06-19.05:49:11.
This wording is relative to N4727.
Edit [depr.strstreambuf.virtuals] as indicated:
pos_type seekpos(pos_type sp, ios_base::openmode which = ios_base::in | ios_base::out) override;
-17- Effects: […]-18- For a sequence to be positioned, if its next pointer is a null pointer, the positioning operation fails. Otherwise, the function determines newoff from sp
[ 2018-06-18 after reflector discussion ]
Priority set to 4
strstreambuf refers to a nonexistent member function of fpos in the specification of the member function seekpos, [depr.strstreambuf.virtuals]/18 (emphasize mine):
For a sequence to be positioned, if its next pointer is a null pointer, the positioning operation fails. Otherwise, the function determines newoff from sp.offset():
The intent is clearly to get the corresponding streamoff from the fpos, as p19 says "the resultant offset newoff (of type off_type)". The mechanism to make that conversion is a normal explicit conversion, as indicated in the last row of the table in [fpos.operations].
|2018-06-19 05:49:11||admin||set||messages: + msg9940|
|2018-04-08 14:50:08||admin||set||messages: + msg9807|