Is there a way to generate error set in comptime?

[arisumar25]

I am working on a C library that has its own error code. I want to make an error set in comptime based on this error code. Is there a way to accomplish it?

Lets assume that the error code in the C library is just plain c_int.

[Sze]

Are you looking for something like this?

Not able to create ErrorSet after removal @Type?

I used to use the following function to generate error sets from enums, this is very useful when creating wrappers for c libraries. fn EnumError(comptime E: type) type { switch (@typeInfo(E)) { .Enum => { const tag_count = std.meta.fields(E).len; var error_tags: [tag_count]std.builtin.Type.Error = undefined; for (std.meta.fields(E), 0..) |enum_field, index| { error_tags[index] = .{ .name = enum_field.name }; } …