Another application of Manuel Nova's "math instead of ifs" trick. Saves 17b.

diff --git a/lib/bunzip.c b/lib/bunzip.c
index 74e7b17..9a0ec6d 100644 (file)
--- a/lib/bunzip.c
+++ b/lib/bunzip.c
@@ -316,8 +316,7 @@ int read_bunzip_data(bunzip_data *bd)
                           the basic or 0/1 method (except all bits 0, which would use no
                           symbols, but a run of length 0 doesn't mean anything in this
                           context).  Thus space is saved. */
-                       if (nextSym == SYMBOL_RUNA) t += runPos;
-                       else t += 2*runPos;
+                       t += (runPos << nextSym); // +runPos if RUNA; +2*runPos if RUNB
                        runPos <<= 1;
                        continue;
                }