pathjoin-unc - Joining Windows paths, some with leading \\

These are some results of joining paths and path fragments, including some unusual (or invalid) paths whose semantics are not obvious, on Windows using the Rust standard library.

Output

On Windows 10:

\\?\  +  \\?\  =  \\?\
\\?\  +  \\.\  =  \\.\
\\?\  +  \\?   =  \\?\\?
\\?\  +  \\.   =  \\?\\
\\?\  +  C:    =  C:
\\?\  +  C:/   =  C:/
\\?\  +  C:\   =  C:\
\\.\  +  \\?\  =  \\?\
\\.\  +  \\.\  =  \\.\
\\.\  +  \\?   =  \\.\\\?
\\.\  +  \\.   =  \\.\\\.
\\.\  +  C:    =  C:
\\.\  +  C:/   =  C:/
\\.\  +  C:\   =  C:\
\\?   +  \\?\  =  \\?\
\\?   +  \\.\  =  \\.\
\\?   +  \\?   =  \\?
\\?   +  \\.   =  \\.
\\?   +  C:    =  C:
\\?   +  C:/   =  C:/
\\?   +  C:\   =  C:\
\\.   +  \\?\  =  \\?\
\\.   +  \\.\  =  \\.\
\\.   +  \\?   =  \\?
\\.   +  \\.   =  \\.
\\.   +  C:    =  C:
\\.   +  C:/   =  C:/
\\.   +  C:\   =  C:\
C:    +  \\?\  =  \\?\
C:    +  \\.\  =  \\.\
C:    +  \\?   =  C:\\?
C:    +  \\.   =  C:\\.
C:    +  C:    =  C:
C:    +  C:/   =  C:/
C:    +  C:\   =  C:\
C:/   +  \\?\  =  \\?\
C:/   +  \\.\  =  \\.\
C:/   +  \\?   =  C:\\?
C:/   +  \\.   =  C:\\.
C:/   +  C:    =  C:
C:/   +  C:/   =  C:/
C:/   +  C:\   =  C:\
C:\   +  \\?\  =  \\?\
C:\   +  \\.\  =  \\.\
C:\   +  \\?   =  C:\\?
C:\   +  \\.   =  C:\\.
C:\   +  C:    =  C:
C:\   +  C:/   =  C:/
C:\   +  C:\   =  C:\

License

0BSD