Use exclusively the first method: Foo f() { Foo result; mangle(result); return result; } This will already allow the use of the move constructor, if one is available. In fact, a local variable can bind to an rvalue reference in a return statement precisely when copy elision is allowed. Your second version actively prohibits copy … Read more
The rename function does this docs rename rename(‘image1.jpg’, ‘del/image1.jpg’); If you want to keep the existing file on the same place you should use copy docs copy copy(‘image1.jpg’, ‘del/image1.jpg’); If you want to move an uploaded file use the move_uploaded_file, although this is almost the same as rename this function also checks that the given … Read more
From version 2.0, in copy module you can use remote_src parameter. If True it will go to the remote/target machine for the src. – name: Copy files from foo to bar copy: remote_src=True src=/path/to/foo dest=/path/to/bar If you want to move file you need to delete old file with file module – name: Remove old files … Read more