changed blueprint_index from uint16_t to size_t.

Author: gittiver

include/crow/routing.h

@@ -23,7 +23,7 @@
 namespace crow // NOTE: Already documented in "crow/app.h"
 {
 
-    constexpr const uint16_t INVALID_BP_ID{((uint16_t)-1)};
+    constexpr const size_t INVALID_BP_ID{SIZE_T_MAX};
 
     namespace detail
     {
@@ -729,7 +729,7 @@ namespace crow // NOTE: Already documented in "crow/app.h"
         {
             uint16_t rule_index{};
             // Assign the index to the maximum 32 unsigned integer value by default so that any other number (specifically 0) is a valid BP id.
-            uint16_t blueprint_index{INVALID_BP_ID};
+            size_t blueprint_index{INVALID_BP_ID};
             std::string key;
             ParamType param = ParamType::MAX; // MAX = No param.
             std::vector<Node> children;
@@ -1016,7 +1016,7 @@ namespace crow // NOTE: Already documented in "crow/app.h"
         }
 
         //This functions assumes any blueprint info passed is valid
-        void add(const std::string& url, uint16_t rule_index, unsigned bp_prefix_length = 0, uint16_t blueprint_index = INVALID_BP_ID)
+        void add(const std::string& url, uint16_t rule_index, unsigned bp_prefix_length = 0, size_t blueprint_index = INVALID_BP_ID)
         {
             auto idx = &head_;
 
@@ -1301,7 +1301,7 @@ namespace crow // NOTE: Already documented in "crow/app.h"
             internal_add_rule_object(rule, ruleObject, INVALID_BP_ID, blueprints_);
         }
 
-        void internal_add_rule_object(const std::string& rule, BaseRule* ruleObject, const uint16_t& BP_index, std::vector<Blueprint*>& blueprints)
+        void internal_add_rule_object(const std::string& rule, BaseRule* ruleObject, const size_t& BP_index, std::vector<Blueprint*>& blueprints)
         {
             bool has_trailing_slash = false;
             std::string rule_without_trailing_slash;
@@ -1316,7 +1316,9 @@ namespace crow // NOTE: Already documented in "crow/app.h"
 
             ruleObject->foreach_method([&](int method) {
                 per_methods_[method].rules.emplace_back(ruleObject);
-                per_methods_[method].trie.add(rule, static_cast<uint16_t>(per_methods_[method].rules.size() - 1), BP_index != INVALID_BP_ID ? static_cast<uint16_t>(blueprints[BP_index]->prefix().length()) : 0, BP_index);
+                per_methods_[method].trie.add(rule, per_methods_[method].rules.size() - 1,
+                    BP_index != INVALID_BP_ID ? blueprints[BP_index]->prefix().length() : 0,
+                    BP_index);
 
                 // directory case:
                 //   request to '/about' url matches '/about/' rule