Look into xcopy, which will recursively copy files and subdirectories. There are examples, 2/3 down the page. Of particular use is: To copy all the files and subdirectories (including any empty subdirectories) from drive A to drive B, type: xcopy a: b: /s /e
shutil has many methods you can use. One of which is: Copy the contents of the file named src to a file named dst. Both src and dst need to be the entire filename of the files, including path. The destination location must be writable; otherwise, an IOError exception will be raised. If dst already exists, it will be replaced. Special files such as character or block … Read more
Yes, you should iterate over 2D boolean array in order to deep copy it. Also look at java.util.Arrays#copyOf methods if you are on Java 6. I would suggest the next code for Java 6:
E0_copy is not a deep copy. You don’t make a deep copy using list(). (Both list(…) and testList[:] are shallow copies.) You use copy.deepcopy(…) for deep copying a list. See the following snippet – Now see the deepcopy operation
There are at least 6 (!) ways to clone an array: loop slice Array.from() concat spread operator (FASTEST) map A.map(function(e){return e;}); There has been a huuuge BENCHMARKS thread, providing following information: for blink browsers slice() is the fastest method, concat() is a bit slower, and while loop is 2.4x slower. for other browsers while loop is the fastest method, since those browsers don’t have internal optimizations for slice and concat. This remains … Read more
You shouldn’t use strcpy() to copy a std::string, only use it for C-Style strings. If you want to copy a to b then just use the = operator.
To get a fully independent copy of an object you can use the copy.deepcopy() function. For more details about shallow and deep copying please refer to the other answers to this question and the nice explanation in this answer to a related question.
If you use std::array instead of a built-in array (which you should), it becomes very simple. Copying an array is then the same as copying any other object.
Create a copy constructor: Every object has also a clone method which can be used to copy the object, but don’t use it. It’s way too easy to create a class and do improper clone method. If you are going to do that, read at least what Joshua Bloch has to say about it in Effective … Read more
You could use the copy() function : Quoting a couple of relevant sentences from its manual page : Makes a copy of the file source to dest. If the destination file already exists, it will be overwritten.