162   OFF_T offset = (OFF_T) pos;  in memseeker()  local
165     offset += c->pos;  in memseeker()
167     offset += c->eof;  in memseeker()
168   if (offset < 0)  in memseeker()
171       offset = -1;  in memseeker()
173   else if ((OFF_T) (size_t) offset != offset)  in memseeker()
176       offset = -1;  in memseeker()
179   else if ((_fpos_t) offset != offset)  in memseeker()
182       offset = -1;  in memseeker()
195       c->pos = offset;  in memseeker()
216   return (_fpos_t) offset;  in memseeker()
228   _off64_t offset = (_off64_t) pos;  in memseeker64()  local
232     offset += c->pos;  in memseeker64()
234     offset += c->eof;  in memseeker64()
235   if (offset < 0)  in memseeker64()
238       offset = -1;  in memseeker64()
240   else if ((_off64_t) (size_t) offset != offset)  in memseeker64()
243       offset = -1;  in memseeker64()
255       c->pos = offset;  in memseeker64()
276   return (_fpos64_t) offset;  in memseeker64()