From: Rich Felker <dalias@aerifal.cx>
Date: Thu, 31 Jul 2014 06:38:23 +0000 (-0400)
Subject: implement ffsl and ffsll functions
X-Git-Tag: v1.1.4~4
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=ecc082c61b6da9a8b2ae0c07aa3331673834d94a;p=oweals%2Fmusl.git

implement ffsl and ffsll functions

per the resolution of Austin Group issue #617, these are accepted for
XSI option in POSIX future and thus I'm treating them as standard
functions.
---

diff --git a/include/strings.h b/include/strings.h
index 4d7d69c3..db0960b4 100644
--- a/include/strings.h
+++ b/include/strings.h
@@ -22,6 +22,8 @@ char *rindex (const char *, int);
 
 #if defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE)  || defined(_BSD_SOURCE)
 int ffs (int);
+int ffsl (long);
+int ffsll (long long);
 #endif
 
 int strcasecmp (const char *, const char *);
diff --git a/src/misc/ffsl.c b/src/misc/ffsl.c
new file mode 100644
index 00000000..0105c66a
--- /dev/null
+++ b/src/misc/ffsl.c
@@ -0,0 +1,7 @@
+#include <strings.h>
+#include "atomic.h"
+
+int ffsl(long i)
+{
+	return i ? a_ctz_l(i)+1 : 0;
+}
diff --git a/src/misc/ffsll.c b/src/misc/ffsll.c
new file mode 100644
index 00000000..0c5ced82
--- /dev/null
+++ b/src/misc/ffsll.c
@@ -0,0 +1,7 @@
+#include <strings.h>
+#include "atomic.h"
+
+int ffsll(long long i)
+{
+	return i ? a_ctz_64(i)+1 : 0;
+}