Specifying the Pathname
Important This document may not represent best practices for current development, links to downloads and other resources may no longer be valid. Current recommended version can be found here. ArchiveDisclaimer

Specifying the Pathname

Each output-file option accepts a pathname argument that can specify a location and a name for the output file. The argument can include a drive name, directory, and file name. No space is allowed between the option and the argument.

If pathname includes a file name without an extension, the compiler gives the output a default extension. If pathname includes a directory but no file name, the compiler creates a file with a default name in the specified directory. The default name is based on the base name of the source file and a default extension based on the type of the output file. If you leave off pathname entirely, the compiler creates a file with a default name in a default directory.

Alternatively, the pathname argument can be a device name (AUX, CON, PRN, or NUL) rather than a file name. Do not use a space between the option and the device name or a colon as part of the device name.

Device name Represents
AUX Auxiliary device
CON Console
PRN Printer
NUL Null device (no file created)


The following command line sends a mapfile to the printer:


See Also

Output-File (/F) Options | Compiler Options | Setting Compiler Options

© 2015 Microsoft