Truncate results for easy read!

main.cpp

@@ -2,12 +2,57 @@
 #include <functional>
 #include <Event.h>
 #include <EventConnection.h>
+#include <cmath>
 
 void ProcessMessage(const std::string& message)
 {
     //std::cout << "Received: " << message << std::endl;
 }
 
+
+int SigFigsTable[] = {0,0,0,1,0,0,1,0,0,1};
+
+int DivBy[] = {1,1,1, 1000,1000,1000, 1000000, 1000000, 1000000, 1000000000, 1000000000,1000000000};
+
+std::vector<std::string> Suffixes = {
+        "", "", "",
+        " Thousand", " Thousand", " Thousand",
+        " Million", " Million", " Million",
+        " Billion", " Billion", " Billion",
+        " Trillion", " Trillion", " Trillion",
+        " Quadrillion", " Quadrillion", " Quadrillion"
+};
+
+float Round(float f, float decimalPlaces) {
+    float mult = std::pow(10, decimalPlaces);
+    return std::floor(f * mult + 0.5f) / mult;
+}
+
+float Sign(float f) { return f >= 0.f ? 1.f : -1.f;}
+
+std::string Truncate(float input) {
+
+    std::stringstream ss;
+    std::string str = "";
+
+    if (input < 1000)
+        ss << std::fixed << std::setprecision(0) << input;
+    else {
+        int figs = std::ceil(std::log10(input)) - 1;
+        auto suffix = Suffixes[figs];
+        auto roundTo = SigFigsTable[figs];
+        auto divBy = DivBy[figs];
+        auto fractional = input / (float)divBy;
+
+        // Increment roundTo for extra precision!!
+
+        ss << std::fixed << std::setprecision(roundTo) << fractional << suffix;
+    }
+    str = ss.str();
+    return str;
+
+}
+
 int main() {
 
     Event<int> very_simple_event;
@@ -51,7 +96,7 @@ int main() {
             break;
     }
 
-    std::cout << "std::string& iterations in 1 second: " << iterations << std::endl;
+    std::cout << "std::string& iterations in 1 second: ~" << Truncate(iterations) << std::endl;
     start = std::chrono::high_resolution_clock::now();
     iterations = 0;
 
@@ -66,7 +111,7 @@ int main() {
         if (elapsed.count() >= 1.0)
             break;
     }
-    std::cout << "void iterations in 1 second: " << iterations << std::endl;
+    std::cout << "void iterations in 1 second: ~" << Truncate(iterations) << std::endl;
 
     start = std::chrono::high_resolution_clock::now();
     iterations = 0;
@@ -83,7 +128,7 @@ int main() {
             break;
     }
 
-    std::cout << "float iterations in 1 second: " << iterations << std::endl;
+    std::cout << "float iterations in 1 second: ~" << Truncate(iterations) << std::endl;
 
     start = std::chrono::high_resolution_clock::now();
     iterations = 0;
@@ -99,7 +144,7 @@ int main() {
         if (elapsed.count() >= 1.0)
             break;
     }
-    std::cout << "long long iterations in 1 second: " << iterations << std::endl;
+    std::cout << "long long iterations in 1 second: ~" << Truncate(iterations) << std::endl;
     return 0;
 }