Add signed support to BitStream and BitWriter

2 files changed, 22 insertions, 0 deletions

diff --git a/libtests/bits.cc b/libtests/bits.cc
index ba1d5483..3b274f93 100644
--- a/libtests/bits.cc
+++ b/libtests/bits.cc
@@ -124,6 +124,13 @@ test()
     b.skipToNextByte();
     std::cout << b.getBits(8) << std::endl;
     std::cout << std::endl;
+    b.reset();
+    std::cout << b.getBitsSigned(3) << std::endl;
+    std::cout << b.getBitsSigned(6) << std::endl;
+    std::cout << b.getBitsSigned(5) << std::endl;
+    std::cout << b.getBitsSigned(1) << std::endl;
+    std::cout << b.getBitsSigned(17) << std::endl;
+    std::cout << std::endl;
 
     // Write tests
 
@@ -159,6 +166,13 @@ test()
     bw.writeBits(0xABUL, 8);
     bw.flush();
     print_buffer(bp);
+    bw.writeBitsSigned(-1, 3);  // 111
+    bw.writeBitsSigned(-12, 6); // 110100
+    bw.writeBitsSigned(4, 3);   // 100
+    bw.writeBitsSigned(-4, 3);  // 100
+    bw.writeBitsSigned(-1, 1);  // 1
+    bw.flush();
+    print_buffer(bp);
 
     delete bp;
 }
diff --git a/libtests/qtest/bits/bits.out b/libtests/qtest/bits/bits.out
index 73111536..8483c110 100644
--- a/libtests/qtest/bits/bits.out
+++ b/libtests/qtest/bits/bits.out
@@ -36,6 +36,12 @@ byte offset = 8, bit offset = 7, bits available = 0
 21
 101
 
+-1
+-22
+5
+0
+-39559
+
 ch = f0, bit_offset = 2
 ch = 00, bit_offset = 6
 ch = 14, bit_offset = 0
@@ -56,4 +62,6 @@ f5 15 65 79 12 89 75 4b
 
 f0 ab
 
+fa 49
+
 done