From: Brian <brian@nostromo.localnet.net>
Date: Sat, 27 Jan 2007 02:01:55 +0000 (-0700)
Subject: document, re-indent _mesa_ffsll()
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=99c9bc386f54964eea0ed93f6b036477076dae57;p=mesa.git

document, re-indent _mesa_ffsll()
---

diff --git a/src/mesa/main/imports.c b/src/mesa/main/imports.c
index ad77373075b..be2f04c1881 100644
--- a/src/mesa/main/imports.c
+++ b/src/mesa/main/imports.c
@@ -574,28 +574,36 @@ _mesa_ffs(int i)
 #endif
 }
 
+
+/**
+ * Find position of first bit set in given value.
+ * XXX Warning: this function can only be used on 64-bit systems!
+ * \return  position of lest significant bit set, starting at 1, return zero
+ *          if no bits set.
+ */
 int
 _mesa_ffsll(long long val)
 {
 #ifdef ffsll
-	return ffsll(val);
+   return ffsll(val);
 #else
-	int bit;
+   int bit;
 
-	assert(sizeof(val) == 8);
+   assert(sizeof(val) == 8);
 
-	bit = ffs(val);
-	if (bit != 0)
-		return bit;
+   bit = ffs(val);
+   if (bit != 0)
+      return bit;
 
-	bit = ffs(val >> 32);
-	if (bit != 0)
-		return 32 + bit;
+   bit = ffs(val >> 32);
+   if (bit != 0)
+      return 32 + bit;
 
-	return 0;
+   return 0;
 #endif
 }
 
+
 /**
  * Return number of bits set in given GLuint.
  */