Added randomutils and fixed some str utils

CMakeLists.txt

@@ -13,6 +13,7 @@ set(headers
     src/delayedconstruction.h
     src/makearray.h
     src/numberparsing.h
+    src/randomutils.h
     src/refwhenneeded.h
     src/strutils.h
 )

src/randomutils.h

@@ -0,0 +1,50 @@
+#pragma once
+
+// system includes
+#include <random>
+
+namespace cpputils {
+
+template<typename T, typename Trandom>
+T randomNumber(T min, T max, Trandom &&rng)
+{
+    std::uniform_int_distribution<T> dist{min, max};
+    return dist(rng);
+}
+
+//template<typename Trandom>
+//float randomNumber<float, Trandom>(float min, float max, Trandom &rng)
+//{
+//    std::uniform_real_distribution<float> dist{min, max};
+//    return dist(rng);
+//}
+
+//template<typename Trandom>
+//double randomNumber<double, Trandom>(double min, double max, Trandom &rng)
+//{
+//    std::uniform_real_distribution<double> dist{min, max};
+//    return dist(rng);
+//}
+
+template<typename T, typename Trandom>
+T randomNumber(T max, Trandom &&rng)
+{
+    std::uniform_int_distribution<T> dist{{}, max};
+    return dist(rng);
+}
+
+//template<typename Trandom>
+//float randomNumber<float, Trandom>(float max, Trandom &rng)
+//{
+//    std::uniform_real_distribution<float> dist{{}, max};
+//    return dist(rng);
+//}
+
+//template<typename Trandom>
+//double randomNumber<double, Trandom>(double max, Trandom &rng)
+//{
+//    std::uniform_real_distribution<double> dist{{}, max};
+//    return dist(rng);
+//}
+
+} // namespace cpputils

src/strutils.cpp

@@ -1,14 +1,11 @@
 #include "strutils.h"
 
 // system includes
-#include <algorithm>
 #include <cctype>
 
 namespace cpputils {
 bool stringEqualsIgnoreCase(std::string_view a, std::string_view b)
 {
-    return a == b; // HACK for now...
-
     if (a.size() != b.size())
         return false;
 
@@ -25,14 +22,10 @@ bool stringStartsWith(std::string_view fullString, std::string_view begin)
 
 bool stringEndsWith(std::string_view fullString, std::string_view ending)
 {
-    if (fullString.length() >= ending.length())
-    {
-        return (0 == fullString.compare(fullString.length() - ending.length(), ending.length(), ending));
-    }
-    else
-    {
+    if (fullString.length() < ending.length())
         return false;
-    }
+
+    return fullString.compare(fullString.length() - ending.length(), ending.length(), ending) == 0;
 }
 
 //void stringReplaceAll(char search, char replace, std::string &subject)

src/strutils.h

@@ -4,6 +4,8 @@
 #include <string>
 #include <optional>
 #include <string_view>
+#include <random>
+#include <algorithm>
 
 namespace cpputils {
 inline std::string toString(bool val) { return val ? "true" : "false"; }
@@ -44,4 +46,20 @@ void stringReplaceAll(std::string_view search, std::string_view replace, std::st
 std::string stringReplaceAll(char search, std::string_view replace, std::string_view subject);
 //std::string stringReplaceAll(std::string_view search, char replace, std::string_view subject);
 std::string stringReplaceAll(std::string_view search, std::string_view replace, std::string_view subject);
+
+template<typename Trandom>
+std::string randomString(std::size_t length, Trandom &rng)
+{
+    constexpr const char chars[] =
+        "0123456789"
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+        "abcdefghijklmnopqrstuvwxyz";
+
+    std::uniform_int_distribution dist{{}, std::size(chars) - 1};
+
+    std::string result(length, '\0');
+    std::generate_n(std::begin(result), length, [&]() { return chars[dist(rng)]; });
+    return result;
+}
+
 } // namespace cpputils