From 306196da2a8383919881f0eb997dc1756f7325e3 Mon Sep 17 00:00:00 2001
From: Peter Limkilde Svendsen <peter.limkilde@gmail.com>
Date: Mon, 3 Feb 2025 22:47:45 +0100
Subject: [PATCH] Implement ffsl(), ffsll()

---
 src/header/strings/mod.rs | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/header/strings/mod.rs b/src/header/strings/mod.rs
index cb2475bafe..2f4ab09513 100644
--- a/src/header/strings/mod.rs
+++ b/src/header/strings/mod.rs
@@ -79,13 +79,19 @@ pub extern "C" fn ffs(i: c_int) -> c_int {
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/ffs.html>.
 // #[no_mangle]
 pub extern "C" fn ffsl(i: c_long) -> c_int {
-    unimplemented!();
+    if i == 0 {
+        return 0;
+    }
+    1 + i.trailing_zeros() as c_int
 }
 
 /// See <https://pubs.opengroup.org/onlinepubs/9799919799/functions/ffs.html>.
 // #[no_mangle]
 pub extern "C" fn ffsll(i: c_longlong) -> c_int {
-    unimplemented!();
+    if i == 0 {
+        return 0;
+    }
+    1 + i.trailing_zeros() as c_int
 }
 
 /// See <https://pubs.opengroup.org/onlinepubs/009695399/functions/index.html>.