Function realpathAlloc [src]
Prototype
pub fn realpathAlloc(self: Dir, allocator: Allocator, pathname: []const u8) RealPathAllocError![]u8 Parameters
self: Dirallocator: Allocatorpathname: []const u8 Possible Errors
On Windows, antivirus software is enabled by default. It can be disabled, but Windows Update sometimes ignores the user's preference and re-enables it. When enabled, antivirus software on Windows intercepts file system operations and makes them significantly slower in addition to possibly failing with this error code.
Windows-only; file paths provided by the user must be valid WTF-8. https://simonsapin.github.io/wtf-8/
On Windows, \\server or \\server\share was not found.
The Operating System returned an undocumented error code.
This error is in theory not possible, but it would be better to handle this error than to invoke undefined behavior.
When this error code is observed, it usually means the Zig Standard Library needs a small patch to add the error code to the error set for the respective function.
On Windows, the volume does not contain a recognized file system. File system drivers might not be loaded, or the volume may be corrupt.
Source
pub fn realpathAlloc(self: Dir, allocator: Allocator, pathname: []const u8) RealPathAllocError![]u8 {
// Use of max_path_bytes here is valid as the realpath function does not
// have a variant that takes an arbitrary-size buffer.
// TODO(#4812): Consider reimplementing realpath or using the POSIX.1-2008
// NULL out parameter (GNU's canonicalize_file_name) to handle overelong
// paths. musl supports passing NULL but restricts the output to PATH_MAX
// anyway.
var buf: [fs.max_path_bytes]u8 = undefined;
return allocator.dupe(u8, try self.realpath(pathname, buf[0..]));
}