fix: add more allocations

Author: not-matthias

examples/google_benchmark_cmake/memory_bench.hpp

@@ -7,11 +7,12 @@
 
 // Run-length encoding: compress consecutive repeated characters
 // Example: "aaabbbccc" -> "3a3b3c"
+// NOTE: Intentionally inefficient - no pre-allocation to show multiple
+// allocations
 static std::string rle_encode(const std::string& input) {
   if (input.empty()) return "";
 
-  std::string result;
-  result.reserve(input.size());  // Pre-allocate reasonable size
+  std::string result;  // No reserve - will trigger multiple reallocations
 
   char current = input[0];
   size_t count = 1;
@@ -20,12 +21,19 @@ static std::string rle_encode(const std::string& input) {
     if (input[i] == current) {
       count++;
     } else {
-      result += std::to_string(count) + current;
+      // Create intermediate strings for each run
+      std::string count_str = std::to_string(count);
+      std::string run_encoded = count_str + current;
+      result += run_encoded;  // Concatenation causes reallocations
       current = input[i];
       count = 1;
     }
   }
-  result += std::to_string(count) + current;
+
+  // Final run
+  std::string count_str = std::to_string(count);
+  std::string final_run = count_str + current;
+  result += final_run;
 
   return result;
 }