Update rpkt.cc

artis-mcrt · May 27, 2024 · 5a9b047 · 5a9b047
1 parent eeac050
commit 5a9b047
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/rpkt.cc b/rpkt.cc
@@ -122,10 +122,11 @@ auto closest_transition(const double nu_cmf, const int next_trans) -> int
   // will find the highest frequency (lowest index) line with nu_line <= nu_cmf
   // lower_bound matches the first element where the comparison function is false
 
-  const auto *matchline =
-      std::lower_bound(globals::linelist, globals::linelist + globals::nlines, nu_cmf,
-                       [](const auto &line, const double nu_cmf) -> bool { return line.nu > nu_cmf; });
-  const int matchindex = static_cast<int>(matchline - globals::linelist);
+  const int matchindex =
+      std::distance(globals::linelist,
+                    std::lower_bound(globals::linelist, globals::linelist + globals::nlines, nu_cmf,
+                                     [](const auto &line, const double nu_cmf) -> bool { return line.nu > nu_cmf; }));
+
   if (matchindex >= globals::nlines) {
     return -1;
   }