以下成員源於類 QVarLengthArray 被棄用。 提供它們是為使舊源代碼能繼續工作。強烈建議不要在新代碼中使用它們。
(deprecated (6.3))
void
|
prepend (T && value ) |
(deprecated (6.3))
void
|
prepend (const T & value ) |
This function is deprecated since 6.3. We strongly advise against using it in new code.
This is slow. If you must, use
insert(cbegin(), ~~~)
代替。
插入 value at the beginning of the array.
This is the same as vector.insert(0, value ).
For large arrays, this operation can be slow ( 綫性時間 ), because it requires moving all the items in the vector by one position further in memory. If you want a container class that provides a fast prepend () function, use std::list instead.
