added additional const constraints

Author: SamStan4

src/alignment/de_cell.cpp

@@ -11,11 +11,11 @@ dp_cell::dp_cell() :
   m_i_matches(0) {
 }
 
-int64_t dp_cell::get_max_score(void) {
+int64_t dp_cell::get_max_score(void) const {
   return std::max(this->m_s_score, std::max(this->m_d_score, this->m_i_score));
 }
 
-int32_t dp_cell::get_max_score_matches(void) {
+int32_t dp_cell::get_max_score_matches(void) const {
   const int64_t max_score = std::max(this->m_s_score, std::max(this->m_d_score, this->m_i_score));
   if (max_score == this->m_s_score) {
     return this->m_s_matches;

src/alignment/dp_cell.hpp

@@ -16,8 +16,8 @@ class dp_cell {
   int32_t m_i_matches;
 public:
   dp_cell();
-  int64_t get_max_score(void);
-  int32_t get_max_score_matches(void);
+  int64_t get_max_score(void) const;
+  int32_t get_max_score_matches(void) const;
   void score_cell(const dp_cell&, const dp_cell&, const dp_cell&);
   void reset_cell(void);