From 5717d373e209a78d1a53077738058699541392e1 Mon Sep 17 00:00:00 2001
From: "George G. Vega Yon" <g.vegayon@gmail.com>
Date: Tue, 13 Jun 2023 13:39:52 -0600
Subject: [PATCH] Derreference of nullptr corrected

---
 epiworld.hpp                     | 10 +++++-----
 include/epiworld/misc.hpp        |  4 ++--
 include/epiworld/virus-bones.hpp |  2 +-
 include/epiworld/virus-meat.hpp  |  4 ++--
 tests/Makefile                   |  2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/epiworld.hpp b/epiworld.hpp
index 26ddadea..9385975a 100644
--- a/epiworld.hpp
+++ b/epiworld.hpp
@@ -628,9 +628,9 @@ inline int roulette(std::vector< double > & probs, Model<TSeq> * m)
 }
 
 template<typename TSeq>
-inline int roulette(std::vector< epiworld_double > & probs, Model<TSeq> * m)
+inline int roulette(std::vector< float > & probs, Model<TSeq> * m)
 {
-    return roulette<TSeq, epiworld_double>(probs, m);
+    return roulette<TSeq, float>(probs, m);
 }
 
 
@@ -10013,7 +10013,7 @@ class Virus {
     void mutate(Model<TSeq> * model);
     void set_mutation(MutFun<TSeq> fun);
     
-    const TSeq* get_sequence();
+    std::shared_ptr<TSeq> get_sequence();
     void set_sequence(TSeq sequence);
     
     Agent<TSeq> * get_agent();
@@ -10237,10 +10237,10 @@ inline void Virus<TSeq>::set_mutation(
 }
 
 template<typename TSeq>
-inline const TSeq * Virus<TSeq>::get_sequence()
+inline std::shared_ptr<TSeq> Virus<TSeq>::get_sequence()
 {
 
-    return &(*baseline_sequence);
+    return baseline_sequence;
 
 }
 
diff --git a/include/epiworld/misc.hpp b/include/epiworld/misc.hpp
index 97400e8c..dbeb73d1 100644
--- a/include/epiworld/misc.hpp
+++ b/include/epiworld/misc.hpp
@@ -192,9 +192,9 @@ inline int roulette(std::vector< double > & probs, Model<TSeq> * m)
 }
 
 template<typename TSeq>
-inline int roulette(std::vector< epiworld_double > & probs, Model<TSeq> * m)
+inline int roulette(std::vector< float > & probs, Model<TSeq> * m)
 {
-    return roulette<TSeq, epiworld_double>(probs, m);
+    return roulette<TSeq, float>(probs, m);
 }
 
 
diff --git a/include/epiworld/virus-bones.hpp b/include/epiworld/virus-bones.hpp
index d91d4cb2..98e899af 100644
--- a/include/epiworld/virus-bones.hpp
+++ b/include/epiworld/virus-bones.hpp
@@ -62,7 +62,7 @@ class Virus {
     void mutate(Model<TSeq> * model);
     void set_mutation(MutFun<TSeq> fun);
     
-    const TSeq* get_sequence();
+    std::shared_ptr<TSeq> get_sequence();
     void set_sequence(TSeq sequence);
     
     Agent<TSeq> * get_agent();
diff --git a/include/epiworld/virus-meat.hpp b/include/epiworld/virus-meat.hpp
index d8c190d7..b6d5aa9e 100644
--- a/include/epiworld/virus-meat.hpp
+++ b/include/epiworld/virus-meat.hpp
@@ -109,10 +109,10 @@ inline void Virus<TSeq>::set_mutation(
 }
 
 template<typename TSeq>
-inline const TSeq * Virus<TSeq>::get_sequence()
+inline std::shared_ptr<TSeq> Virus<TSeq>::get_sequence()
 {
 
-    return &(*baseline_sequence);
+    return baseline_sequence;
 
 }
 
diff --git a/tests/Makefile b/tests/Makefile
index e20d8975..380bd635 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -1,7 +1,7 @@
 all: main.o
 
 main.o: main.cpp
-	g++ -std=c++14 -Wall -Wextra -O2 -fopenmp -g -pedantic main.cpp -o main.o
+	g++ -std=c++14 -Wall -Wextra -Wnull-dereference -fdelete-null-pointer-checks -O2 -fopenmp -g -pedantic main.cpp -o main.o
 
 main.a: main.cpp
 	clang++ -std=c++14 -Wall -Wextra -fopenmp -Wpedantic -O2 main.cpp -o main.a