`std.mmfile.mm_file.this` - multiple declarations

Function MmFile.this

Open memory mapped file filename for reading. File is closed when the object instance is deleted.

this(
  string filename
);

Open memory mapped file filename in mode. File is closed when the object instance is deleted.

this(
  string filename,
  MmFile.Mode mode,
  ulong size,
  void* address,
  ulong window = 0LU
);

Name	Description
filename	name of the file. If null, an anonymous file mapping is created.
mode	access `mode` defined above.
size	the `size` of the file. If 0, it is taken to be the `size` of the existing file.
address	the preferred `address` to map the file to, although the system is not required to honor it. If null, the system selects the most convenient `address`.
window	preferred block `size` of the amount of data to map at one time with 0 meaning map the entire file. The `window` `size` must be a multiple of the memory allocation page `size`.

Walter Bright, Matthew Wilson