Maximum path and path element length, Win32 vs Cygwin vs SFU?

[Marco Atzeri]

On 03/12/2023 17:45, Cedric Blancher via Cygwin wrote:
> Good evening!
> 
> What is the maximum path length and path element (single file, dirname
> length) in Win32 API, Cygwin APIs on Windows 11, and SFU on Win7?
> 
> There seems to be some confusion, docs cite 256, 260 and 32k, and
> getconf PATH_MAX / returns 4096.
> 
> What is the maximum supported in the Win32 API, what is the maximum
> supported in Cygwin, and what applications and drivers need to expect?
> 
> Ced

for Cygwin look at

/usr/include/limits.h
/usr/include/cygwin/config.h
/usr/include/cygwin/limits.h


$ grep -rH PATH_MAX .
./config.h:#define __FILENAME_MAX__ 4096        /* Keep in sync with 
PATH_MAX in limits.h. */
./limits.h:#define __PATH_MAX 4096

Regards
Marco