Merge pull request #272 from haberman/fuzz-fix
Fixed a bug found by fuzzing.
diff --git a/src/bloaty.cc b/src/bloaty.cc
index 4e9ec0c..b757045 100644
--- a/src/bloaty.cc
+++ b/src/bloaty.cc
@@ -1617,7 +1617,7 @@
void PrintMaps(const std::vector<const RangeMap*> maps) {
uint64_t last = 0;
uint64_t max = maps[0]->GetMaxAddress();
- int hex_digits = std::ceil(std::log2(max) / 4);
+ int hex_digits = max > 0 ? std::ceil(std::log2(max) / 4) : 0;
RangeMap::ComputeRollup(maps, [&](const std::vector<std::string>& keys,
uint64_t addr, uint64_t end) {
if (addr > last) {
