extend() should not need sign extension for the bits parameter.

diff --git a/dehuff.h b/dehuff.h
index 9243e101530018b346e80e2db8b64b96dee1db61..f29b815631752e213d6a9867b728e33c9438c60d 100644 (file)
--- a/dehuff.h
+++ b/dehuff.h
@@ -81,7 +81,7 @@ static const int bit_thresholds[16] = {
        0, 1 << 0, 1 << 1, 1 << 2, 1 << 3, 1 << 4, 1 << 5, 1 << 6, 1 << 7, 1 << 8, 1 << 9, 1 << 10, 1 << 11, 1 << 12, 1 << 13, 1 << 14
 };
 
-static inline unsigned extend(int val, int bits)
+static inline unsigned extend(int val, unsigned bits)
 {
        if (val < bit_thresholds[bits]) {
                return val + (-1 << bits) + 1;