Changeset 1976

Timestamp:

03/27/12 11:56:06 (15 months ago)

Author:

cameron

Message:

Fix for reverse scan on 64-bit

Files:

• trunk/lib/bitblock_scan.hpp (modified) (1 diff)

trunk/lib/bitblock_scan.hpp

@@ -91 +91 @@
 
         IDISA_ALWAYS_INLINE int32_t scan_to_next() {
+                const scanblock_t one_bit = 1;  /* ensure enough bits for shift: one_bit << this->pos */
                 while (this->blk > 0){
                         if(has_bit(this->scan_blk)){
                                 this->pos = (sizeof(scanblock_t)*8 - scan_backward_zeroes(this->scan_blk) -1) + ( (this->blk-1) * sizeof(scanblock_t)*8 );
-                                this->scan_blk = this->scan_blk ^ (1 << this->pos); // clear leftmost bit
+                                this->scan_blk = this->scan_blk ^ (one_bit << this->pos); // clear leftmost bit
                                 return (this->pos);
                         }