Changeset 860a7bb in mainline

Timestamp:

2013-11-12T15:28:42Z (10 years ago)

Author:

Vojtech Horky <vojtechhorky@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

9d1be7b

Parents:

cb2739a

Message:

Implement popcountdi2

Location:

uspace/lib/c

Files:

• generic/bitops.c (modified) (1 diff)
• include/bitops.h (modified) (1 diff)

uspace/lib/c/generic/bitops.c

@@ -44 +44 @@
 }
 
+int __popcountdi2(long a)
+{
+        int bits = 0;
+        for (unsigned int i = 0; i < sizeof(a) * 8; i++)         {
+                if (((a >> i) & 1) != 0) {
+                        bits++;
+                }
+        }
+        return bits;                                                                    
+}
 
 /** @}

uspace/lib/c/include/bitops.h

@@ -108 +108 @@
 
 extern int __popcountsi2(int);
+extern int __popcountdi2(long);
 
 #endif