Fix an assert in ViterbiR2O4::decode
The table length was wrong becuase matchCostTable is a float pointer and
not an array since 792330777d7c21df02ce1ecb6f876b076a14b519
python2.7: /home/user/gr-gsm/lib/decoding/openbts/ViterbiR204.cpp:288: virtual void ViterbiR2O4::decode(const SoftVector&, BitVector&): Assertion `match-matchCostTable<(float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1' failed.
(gdb) f 4
#4 0x00007fffdff820c3 in ViterbiR2O4::decode (this=0x5555563bbdf0, in=..., target=...)
at /home/vasko/sources/gr-gsm/gr-gsm/lib/decoding/openbts/ViterbiR204.cpp:288
288 assert(match-matchCostTable<(float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1);
(gdb) p match-matchCostTable
$1 = 2
(gdb) p (float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1
$2 = 1
(gdb) p (float)sizeof(matchCostTable)/sizeof(matchCostTable[0])
$3 = 2
(gdb) p sizeof(matchCostTable)
$4 = 8
diff --git a/lib/decoding/openbts/ViterbiR204.cpp b/lib/decoding/openbts/ViterbiR204.cpp
index fe31aad..29a46e8 100644
--- a/lib/decoding/openbts/ViterbiR204.cpp
+++ b/lib/decoding/openbts/ViterbiR204.cpp
@@ -285,8 +285,8 @@
const ViterbiR2O4::vCand *minCost = NULL;
while (op<opt) {
// Viterbi algorithm
- assert(match-matchCostTable<(float)sizeof(matchCostTable)/sizeof(matchCostTable[0])-1);
- assert(mismatch-mismatchCostTable<(float)sizeof(mismatchCostTable)/sizeof(mismatchCostTable[0])-1);
+ assert(match - matchCostTable < ctsz - 1);
+ assert(mismatch - mismatchCostTable < ctsz - 1);
minCost = decoder.vstep(*ip, match, mismatch, oCount < oSize);
ip += step;
match += step;