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BitVecRemoveAll

BitVecRemoveAll

Description

Remove all occurrences of a specific bit value.

Parameters

Name Direction Description
bv in,out Bitvector to remove from.
value in Bit value to remove (true or false).

Usage example (from documentation) 

  u64 removed = BitVecRemoveAll(&flags, true);

Success

Returns the count of bits removed. Bitvector length shrinks by the returned count; remaining bits are compacted to the front in their original relative order.

Failure

Returns 0 when no bit equal to value exists. The bitvector is unchanged.

Usage example (Cross-references)

Usage examples (Cross-references) 
    }
    
    u64 BitVecRemoveAll(BitVec *bv, bool value) {
        ValidateBitVec(bv);
        DefaultAllocator alloc = DefaultAllocatorInit();
    
        WriteFmt("Testing BitVecRemoveAll\n");
    
        BitVec bv = BitVecInit(ALLOCATOR_OF(&alloc));
    
        // Remove all false bits
        u64 removed_count = BitVecRemoveAll(&bv, false);
    
        // Check result: true, true, true (all false bits removed)

    
        // Try to remove all false bits again (should return 0)
        removed_count = BitVecRemoveAll(&bv, false);
        result        = result && (removed_count == 0) && (BitVecLen(&bv) == 3);
    
        // Remove all true bits
        removed_count = BitVecRemoveAll(&bv, true);
        result        = result && (removed_count == 3) && (BitVecLen(&bv) == 0);
        DefaultAllocator alloc = DefaultAllocatorInit();
    
        WriteFmt("Testing BitVecRemoveAll edge cases\n");
    
        BitVec bv     = BitVecInit(ALLOCATOR_OF(&alloc));
    
        // Test remove all from empty bitvec
        u64 count = BitVecRemoveAll(&bv, true);
        result    = result && (count == 0) && (BitVecLen(&bv) == 0);
        BitVecPush(&bv, true);
        BitVecPush(&bv, true);
        count  = BitVecRemoveAll(&bv, false);
        result = result && (count == 0) && (BitVecLen(&bv) == 2);
            BitVecPush(&bv, true);
        }
        count  = BitVecRemoveAll(&bv, true);
        result = result && (count == 100) && (BitVecLen(&bv) == 0);
            BitVecPush(&bv, i % 2 == 0);
        }
        count  = BitVecRemoveAll(&bv, false); // Remove odds
        result = result && (count == 500) && (BitVecLen(&bv) == 500);
Last updated on
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