SetSeedSeq added

Framework/Random/RNGManager.cc

@@ -10,7 +10,8 @@ void corsika::random::RNGManager::RegisterRandomStream(std::string const& pStrea
   rngs[pStreamName] = std::move(rng);
 }
 
-corsika::random::RNG& corsika::random::RNGManager::GetRandomStream(std::string const& pStreamName) {
+corsika::random::RNG& corsika::random::RNGManager::GetRandomStream(
+    std::string const& pStreamName) {
   return rngs.at(pStreamName);
 }
 
@@ -22,3 +23,8 @@ std::stringstream corsika::random::RNGManager::dumpState() const {
 
   return buffer;
 }
+
+void corsika::random::RNGManager::SetSeedSeq(std::string const& pStreamName,
+                                             std::seed_seq const& pSeedSeq) {
+  seeds[pStreamName] = pSeedSeq;
+}

Framework/Random/RNGManager.h

@@ -38,7 +38,12 @@ namespace corsika::random {
      * into a std::stringstream.
      */
     std::stringstream dumpState() const;
+
+    /**
+     * set seed_seq of \a pStreamName to \a pSeedSeq
+     */
+    void SetSeedSeq(std::string const& pStreamName, std::seed_seq& const pSeedSeq);
   };
 
-} // namespace Random
+} // namespace corsika::random
 #endif

Framework/Random/testRandom.cc

@@ -21,6 +21,8 @@ SCENARIO("random-number streams can be registered and retrieved") {
       THEN("an unknown sequence cannot be retrieved") {
         REQUIRE_THROWS(rngManager.GetRandomStream("stream_UNKNOWN"));
       }
+
+      // seeding not covered yet
     }
   }
 }