Resolve "int and unsigned int parameters warnings"

Closes #392 (closed)

include/core/utils/converter.h

@@ -17,6 +17,7 @@
 #include <vector>
 #include <stack>
 #include <list>
+#include <math.h>
 
 /**
    @file
@@ -96,13 +97,21 @@ struct converter<utils::list<A>>{
 template<>
 struct converter<int>{
     static int convert(std::string val){
-        return stod(val);
+        double res;
+        if (modf(stod(val),&res) > 0)
+            throw std::runtime_error("Invalid conversion to int: The number contains decimals: " + val);
+        return res;
     }
 };
 template<>
 struct converter<unsigned int>{
     static unsigned int convert(std::string val){
-        return stod(val);
+        double res;
+        if (modf(stod(val),&res) > 0)
+            throw std::runtime_error("Invalid conversion to unsigned int: The number contains decimals: " + val);
+        if (res < 0)
+            throw std::runtime_error("Invalid conversion to unsigned int: The number is negative: " + val);
+        return res;
     }
 };
 template<>
@@ -114,8 +123,8 @@ struct converter<double>{
 template<>
 struct converter<bool>{
     static bool convert(std::string val){
-        if(val == "true") return true;
-        else if (val == "false") return false;
+        if(val == "true" or val=="True" or val=="TRUE") return true;
+        else if (val == "false" or val=="False" or val=="FALSE") return false;
         else throw std::runtime_error("Invalid conversion to bool (Must be either \"true\" or \"false\"). String provided: " + val);
     }
 };