1 files changed, 0 insertions, 57 deletions
diff --git a/chapter-modules/src/main/smp/sys/adt/bitset.smp b/chapter-modules/src/main/smp/sys/adt/bitset.smp
deleted file mode 100644
index d02cd2fe..00000000
--- a/chapter-modules/src/main/smp/sys/adt/bitset.smp
+++ /dev/null
@@ -1,57 +0,0 @@
-
-// A set of non-negative integers, represented one bit per value.
-struct bitset {
-    i64[] !_bits;
-
-    new bitset = { ->
-        _bits = new i64[1];
-    };
-
-    // Return 0 for missing, non-zero for true
-    val get = { int bit ->
-        if( (bit >> 6) >= _bits# ) return false;
-        i64 mask = 1 << (bit & 63);
-        return (_bits[bit >> 6] & mask);
-    };
-
-    val _grow = { int bit ->
-        int x = bit >> 6;
-        int len = _bits#;
-        if( x < len ) return self;
-        while( x >= len ) len *= 2;
-        var bits = new i64[len];
-        for( int i=0; i<_bits#; i++ )
-            bits[i] = _bits[i];
-        _bits = bits;
-        return self;
-    };
-
-    // Set
-    val set = { int bit ->
-        i64 mask = 1 << (bit & 63);
-        _grow(bit)._bits[bit >> 6] |= mask;
-        return self;
-    };
-
-    // Test and set
-    val tset = { int bit ->
-        int idx = bit >> 6;
-        i64 mask = 1 << (bit & 63);
-        if( _grow(bit)._bits[idx] & mask )
-          return true;          // Already set
-        _bits[idx] |= mask;
-        return false;           // Was false (and now set)
-    };
-
-    val clr = { int bit ->
-        if( (bit >> 6) >= _bits# ) return self;
-        i64 mask = 1 << (bit & 63);
-        _bits[bit >> 6] &= (mask ^ -1);
-        return self;
-    };
-
-    val clear = { ->
-        for( int i=0; i<_bits#; i++ ) _bits[i] = 0;
-        return self;
-    };
-};