openIterableDir returns entire error enum

Help
,
1

I’m trying to include C source files in build.zig and I’ve been running into this error whilst trying to find all c files in a given directory. I’m using code from this blog post. I’m using version 0.11.0. Here’s the error output.

expected type 'void', found 'error{SystemResources,SymLinkLoop,ProcessFdQuotaExceeded,SystemFdQuotaExceeded,DeviceBusy,Unexpected,FileNotFound,NotDir,InvalidHandle,AccessDenied,NameTooLong,NoDevice,InvalidUtf8,BadPathName,NetworkNotFound}'
        var dir = try std.fs.cwd().openIterableDir(C_ROOT_DIR, .{ .access_sub_paths = true });
                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Users/applejeewce/zig/mizumi/build.zig:6:29: note: function cannot return an error

I triple checked the directory, and even changed it up multiple times but I keep getting the same error. I’m on macOS.

I’d really appreciate any pointers that could help resolve this

Thank you

2

Edit: this may not apply to the version being presented here.

That post may be out of date? I’d just open the directory and make an iterator:

    var dir: std.fs.Dir = try std.fs.openDirAbsolute(self.source_directory, .{
        .access_sub_paths = false,
        .iterate = true,
        .no_follow = true,
    });

    defer dir.close();

    var itr = dir.iterate();

    while (try itr.next()) |path| {
1 Like
3

The function that encloses the try cannot return errors.
If the return type is void change it to !void (that means error or void).

3 Likes
4

thank you! This helped. still very new to zig :sweat_smile:

5

Before we close this out - I’m searching the source here and not finding openIterableDir - @dimdin, do you know what source file that’s in?

6

https://ziglang.org/documentation/0.11.0/std/src/std/fs.zig.html#L1673

here you go

7

Okay, so you’re looking at 0.11.0. That’s why I’m not finding it. Cool - thanks.

8

See

for context

1 Like
9

Thanks, @squeek502!