Zig 0.17.0-dev (Split by item)

This is an example of documentation generated by ZigDoc, an alternative to Zig's built-in Auto Doc feature. See also examples in other modes/formats. The project being documented here (as the example) is the Zig library itself.

setegid

linux.setegid

pub fn setegid(egid: gid_t) usize

File

lib/std/os/linux.zig:2292

Code

pub fn setegid(egid: gid_t) usize {
    // We use setresgid here instead of setregid to ensure that the saved uid
    // is not changed. This is what musl and recent glibc versions do as well.
    //
    // The setresgid(2) man page says that if -1 is passed the corresponding
    // id will not be changed. Since gid_t is unsigned, this wraps around to the
    // max value in C.
    comptime assert(@typeInfo(uid_t) == .int and @typeInfo(uid_t).int.signedness == .unsigned);
    return setresgid(maxInt(gid_t), egid, maxInt(gid_t));
}