Handle the case when there are no sample above threshold

Closes PR #1
rigtorp · Sep 25, 2023 · 071656c · 071656c
1 parent 3b7604b
commit 071656c
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diff --git a/.gitignore b/.gitignore
@@ -2,4 +2,5 @@ build
 cmake-build-*
 *~
 .idea/
-.vscode/
+.vscode/
+.cache/
diff --git a/src/hiccups.cpp b/src/hiccups.cpp
@@ -144,9 +144,9 @@ int main(int argc, char *argv[]) {
   for (auto &[cpu, s] : samples) {
     std::sort(s.begin(), s.end());
     std::cout << cpu << " " << threshold.count() << " " << s.size() << " "
-              << s[s.size() * 0.99].count() << " "
-              << s[s.size() * 0.999].count() << " " << s.back().count()
-              << std::endl;
+              << (s.empty() ? 0 : s[s.size() * 0.99].count()) << " "
+              << (s.empty() ? 0 : s[s.size() * 0.999].count()) << " "
+              << (s.empty() ? 0 : s.back().count()) << std::endl;
   }
 
   return 0;