[fs.enum.copy.opts]

The enum class type copy_options is a bitmask type ([bitmask.types]) that specifies bitmask constants used to control the semantics of copy operations.

The constants are specified in option groups with the meanings listed in Table 145 .

The constant none represents the empty bitmask, and is shown in each option group for purposes of exposition; implementations shall provide only a single definition.

Every other constant in the table represents a distinct bitmask element.

Table 145 — Enum class copy_options [tab:fs.enum.copy.opts]

🔗 Option group controlling copy_file function effects for existing target files
🔗 Constant	Meaning
🔗 none	(Default) Error; file already exists.
🔗 skip_existing	Do not overwrite existing file, do not report an error.
🔗 overwrite_existing	Overwrite the existing file.
🔗 update_existing	Overwrite the existing file if it is older than the replacement file.
🔗 Option group controlling copy function effects for subdirectories
🔗 Constant	Meaning
🔗 none	(Default) Do not copy subdirectories.
🔗 recursive	Recursively copy subdirectories and their contents.
🔗 Option group controlling copy function effects for symbolic links
🔗 Constant	Meaning
🔗 none	(Default) Follow symbolic links.
🔗 copy_symlinks	Copy symbolic links as symbolic links rather than copying the files that they point to.
🔗 skip_symlinks	Ignore symbolic links.
🔗 Option group controlling copy function effects for choosing the form of copying
🔗 Constant	Meaning
🔗 none	(Default) Copy content.
🔗 directories_only	Copy directory structure only, do not copy non-directory files.
🔗 create_symlinks	Make symbolic links instead of copies of files. The source path shall be an absolute path unless the destination path is in the current directory.
🔗 create_hard_links	Make hard links instead of copies of files.

31 Input/output library [input.output]

31.12 File systems [filesystems]

31.12.8 Enumerations [fs.enum]

31.12.8.3 Enum class copy_options [fs.enum.copy.opts]