ADD: utils functions for simple file operations

Author: bigunclemax

utils/utils.h

@@ -0,0 +1,47 @@
+//
+// Created by user on 26.05.2020.
+//
+
+#ifndef FORDTOOLS_UTILS_H
+#define FORDTOOLS_UTILS_H
+
+#include <string>
+#include <filesystem>
+#include <fstream>
+#include <vector>
+
+namespace fs = std::filesystem;
+
+namespace FTUtils {
+
+    inline void bufferToFile(const std::string& file_name, char *data_ptr, int data_len) {
+
+        std::ofstream out_file(file_name, std::ios::out | std::ios::binary);
+        if (!out_file) {
+            throw std::runtime_error("file " + file_name + " can't be created");
+        } else {
+            out_file.write(data_ptr, data_len);
+        }
+        out_file.close();
+    }
+
+    inline void fileToVector(const fs::path& file_path, std::vector<uint8_t>& data) {
+
+        std::ifstream file(file_path, std::ios::binary | std::ios::ate);
+        if(file.fail()) {
+            throw std::runtime_error("Can't open file '" + file_path.string() + "'");
+        }
+        auto file_sz = file.tellg();
+        file.seekg(0, std::ios::beg);
+
+        data.resize(file_sz);
+        if (!file.read(reinterpret_cast<char *>(data.data()), file_sz)) {
+            throw std::runtime_error("Can't read file '" + file_path.string() + "'");
+        }
+
+        file.close();
+    }
+
+}
+
+#endif //FORDTOOLS_UTILS_H