Generic word contract Opens a file for read-only access and maps its contents into memory, passing the mapped-file instance to the quotation. The mapped file is disposed of when the quotation returns, or if an error is thrown.
Notes This is a low-level word, because mapped-file objects simply expose their base address and length. See Working with memory-mapped data for a discussion of how to access data in a mapped file.
Errors Throws an error if a memory mapping could not be established.