func describeColumn(h api.SQLHSTMT, idx int, namebuf []uint16) (namelen int, sqltype api.SQLSMALLINT, size api.SQLULEN, ret api.SQLRETURN) {
var l, decimal, nullable api.SQLSMALLINT
ret = api.SQLDescribeCol(h, api.SQLUSMALLINT(idx+1),
(*api.SQLWCHAR)(unsafe.Pointer(&namebuf[0])),
api.SQLSMALLINT(len(namebuf)), &l,
&sqltype, &size, &decimal, &nullable)
return int(l), sqltype, size, ret
}
func (l *BufferLen) Bind(h api.SQLHSTMT, idx int, ctype api.SQLSMALLINT, buf []byte) api.SQLRETURN {
return api.SQLBindCol(h, api.SQLUSMALLINT(idx+1), ctype,
api.SQLPOINTER(unsafe.Pointer(&buf[0])), api.SQLLEN(len(buf)),
(*api.SQLLEN)(l))
}