std::experi...copy_options(3) C++ Standard Libary std::experi...copy_options(3) NAME std::experimental::filesystem::copy_options - std::experimental::filesys- tem::copy_options Synopsis Defined in header <experimental/filesystem> enum class copy_options { none = 0, skip_existing = 1, overwrite_existing = 2, update_existing = 4, recursive = 8, (filesystem TS) copy_symlinks = 16, skip_symlinks = 32, directories_only = 64, create_symlinks = 128, create_hard_links = 256 }; This type represents available options that control the behavior of the copy() and copy_file() function. copy_options satisfies the requirements of BitmaskType (which means the bitwise operators operator&, operator|, operator^, operator~, operator&=, opera- tor|=, and operator^= are defined for this type). Member constants At most one copy option in each of the following options groups may be present, otherwise the behavior of the copy functions is undefined. Member constant Value Meaning options controlling copy_file() when the file already exists none 0 Report an error (default behavior). skip_existing 1 Keep the existing file, without reporting an error. overwrite_existing 2 Replace the existing file. update_existing 4 Replace the existing file only if it is older than the file being copied. options controlling the effects of copy() on subdirectories none 0 Skip subdirectories (default behavior). recursive 8 Recursively copy subdirectories and their con- tent. options controlling the effects of copy() on symbolic links none 0 Follow symlinks (default behavior). copy_symlinks 16 Copy symlinks as symlinks, not as the files they point to. skip_symlinks 32 Ignore symlinks. options controlling the kind of copying copy() does none 0 Copy file content (default behavior). directories_only 64 Copy the directory structure, but do not copy any non-directory files. Instead of creating copies of files, create symlinks create_symlinks 128 pointing to the originals. Note: the source path must be an absolute path unless the destination path is in the current directory. create_hard_links 256 Instead of creating copies of files, create hardlinks that resolve to the same files as the originals. Example // Run this code #include <experimental/filesystem> #include <fstream> #include <iostream> namespace fs = std::experimental::filesystem; int main() { fs::create_directories("sandbox/dir/subdir"); std::ofstream("sandbox/file1.txt").put('a'); fs::copy("sandbox/file1.txt", "sandbox/file2.txt"); // copy file fs::copy("sandbox/dir", "sandbox/dir2"); // copy directory (non-recur- sive) // sandbox holds 2 files and 2 directories, one of which has a subdi- rectory // sandbox/file1.txt // sandbox/file2.txt // sandbox/dir2 // sandbox/dir // sandbox/dir/subdir fs::copy("sandbox", "sandbox/copy", fs::copy_options::recursive); // sandbox/copy holds copies of the above files and subdirectories fs::remove_all("sandbox"); } See also copy copies files or directories (function) copy_file copies file contents (function) Category: * Noindexed pages http://cppreference.com 2024.06.10 std::experi...copy_options(3)
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