Add main function for testing BinaryTable functionality

cpp/binary_table.h

@@ -415,3 +415,63 @@ inline std::vector<BT_FreeListEntry> decodeFreeList(const std::vector<uint8_t>&
     }
     return freeList;
 }
+
+// --- Main function for testing ---
+#ifdef BINARY_TABLE_MAIN
+#include <iostream>
+#include <fstream>
+
+int main() {
+    const std::string filename = "example.bin";
+    // Remove file if it exists
+    std::remove(filename.c_str());
+    // Create file
+    std::ofstream(filename).close();
+    BinaryTable table(filename);
+    // No explicit initialise needed, but could be added if desired
+
+    std::cout << "File dump:" << std::endl;
+    {
+        std::ifstream f(filename, std::ios::binary);
+        std::vector<uint8_t> data((std::istreambuf_iterator<char>(f)), std::istreambuf_iterator<char>());
+        std::cout << binaryDump(data) << std::endl;
+        std::cout << "File size: " << data.size() << " bytes\n" << std::endl;
+    }
+
+    // Insert arrays
+    table.set("int_array", std::vector<int>{6, 3, 9, 2, 5});
+    table.set("float_array", std::vector<double>{1.5, 2.5, 3.5});
+    table.set("empty", std::vector<int>{});
+
+    // Modify arrays
+    BT_UniformArray intArr = std::get<BT_UniformArray>(table.get("int_array"));
+    BT_UniformArray floatArr = std::get<BT_UniformArray>(table.get("float_array"));
+    intArr.set(0, 1);
+    floatArr.set(1, 4.5);
+
+    std::cout << "int_array pointer: " << intArr._pointer.to_string() << std::endl;
+    std::cout << "float_array pointer: " << floatArr._pointer.to_string() << std::endl;
+
+    intArr.add(10);
+    floatArr.add(5.5);
+    intArr.addAll({420, 69, 1337, 1738});
+    floatArr.addAll({6.5, 7.5, 8.5});
+
+    auto readback1 = intArr.to_string(true);
+    auto readback2 = floatArr.to_string(true);
+    BT_UniformArray emptyArr = std::get<BT_UniformArray>(table.get("empty"));
+    auto readback3 = emptyArr.to_string(true);
+    std::cout << "Readback1: " << readback1 << std::endl;
+    std::cout << "Readback2: " << readback2 << std::endl;
+    std::cout << "Readback3: " << readback3 << std::endl;
+
+    std::cout << "\nFile dump:" << std::endl;
+    {
+        std::ifstream f(filename, std::ios::binary);
+        std::vector<uint8_t> data((std::istreambuf_iterator<char>(f)), std::istreambuf_iterator<char>());
+        std::cout << binaryDump(data) << std::endl;
+        std::cout << "File size: " << data.size() << " bytes" << std::endl;
+    }
+    return 0;
+}
+#endif