doc: update example

Author: SSARCandy

README.md

@@ -11,21 +11,15 @@ Yet another `.ini` parser for modern c++ (made for cpp17), inspired and extend f
 
 ```cpp
 #include "ini/INIReader.h"
-using namespace inih;
 
 int main() {
-    INIReader r{"./test/fixtures/config.ini"};
-
-    const std::string v = r.Get<std::string>("section1", "any"); // "5"
-    const auto& v1 = r.Get<int>("section1", "any"); // 5
-    const auto& v2 = r.Get<double>("section1", "any"); // 5.0
-
-    const std::vector<float> v3{
-        r.GetVector<float>("section2", "any_vec")
-    }; // 1, 2, 3
-    const std::vector<std::string> v4{
-        r.GetVector<std::string>("section2", "any_vec")
-    }; // "1", "2", "3"
+    inih::INIReader r{"./test/fixtures/config.ini"};
+
+    const auto& v1 = r.Get<std::string>("section1", "any"); // "5"
+    const auto& v2 = r.Get<int>("section1", "any"); // 5
+    const auto& v3 = r.Get<double>("section1", "any"); // 5.0
+    const auto& v4 = r.GetVector<float>("section2", "any_vec"); // [1.0, 2.0, 3.0]
+    const auto& v5 = r.GetVector<std::string>("section2", "any_vec"); // ["1", "2", "3"]
 
     return 0;
 }

example.cpp

@@ -1,18 +1,35 @@
 #include <iostream>
-#include <vector>
 #include <string>
+#include <typeinfo>
+#include <boost/core/demangle.hpp>
+
 #include "ini/INIReader.h"
 using namespace inih;
 
+namespace bc = boost::core;
+
 int main() {
     INIReader r{"./test/fixtures/config.ini"};
 
-    const std::string v = r.Get<std::string>("section1", "any"); 
-    const auto& v1 = r.Get<int>("section1", "any");
-    const auto& v2 = r.Get<double>("section1", "any");
+    const auto& v1 = r.Get<std::string>("section1", "any"); 
+    const auto& v2 = r.Get<int>("section1", "any");
+    const auto& v3 = r.Get<double>("section1", "any");
+    const auto& v4 = r.GetVector<float>("section2", "any_vec");
+    const auto& v5{r.GetVector<std::string>("section2", "any_vec")};
+
+    /** output
+     * v1 = "1"             type: std::string
+     * v2 = 1               type: int
+     * v3 = 1.0             type: double
+     * v4 = [1, 2, 3]       type: std::vector<float>
+     * v5 = ["1", "2", "3"] type: std::vector<std::string>
+     */
 
-    const std::vector<float> v3{r.GetVector<float>("section2", "any_vec")};
-    const std::vector<std::string> v4{r.GetVector<std::string>("section2", "any_vec")};
+    std::cout << "v1 = " << v1 << ", which is type: " << bc::demangle(typeid(v1).name()) << std::endl;
+    std::cout << "v2 = " << v2 << ", which is type: " << bc::demangle(typeid(v2).name()) << std::endl;
+    std::cout << "v3 = " << v3 << ", which is type: " << bc::demangle(typeid(v3).name()) << std::endl;
+    std::cout << "v4 = "; for (auto& v : v4) std::cout << v << " "; std::cout << ", which is type: " << bc::demangle(typeid(v4).name()) << std::endl;
+    std::cout << "v5 = "; for (auto& v : v5) std::cout << v << " "; std::cout << ", which is type: " << bc::demangle(typeid(v5).name()) << std::endl;
 
     return 0;
 }