redundancy reduced

src/files/files.h

@@ -31,20 +31,20 @@ namespace files {
     /// @param file target file
     /// @param data data bytes array
     /// @param size size of data bytes array
-    extern bool write_bytes(fs::path file, const ubyte* data, size_t size);
+    bool write_bytes(fs::path file, const ubyte* data, size_t size);
 
     /// @brief Append bytes array to the file without any extra data
     /// @param file target file
     /// @param data data bytes array
     /// @param size size of data bytes array
-    extern uint append_bytes(fs::path file, const ubyte* data, size_t size);
+    uint append_bytes(fs::path file, const ubyte* data, size_t size);
 
     /// @brief Write string to the file
-    extern bool write_string(fs::path filename, const std::string content);
+    bool write_string(fs::path filename, const std::string content);
 
     /// @brief Write dynamic data to the JSON file
     /// @param nice if true, human readable format will be used, otherwise minimal
-    extern bool write_json(
+    bool write_json(
         fs::path filename, 
         const dynamic::Map* obj, 
         bool nice=true);
@@ -52,21 +52,21 @@ namespace files {
     /// @brief Write dynamic data to the binary JSON file
     /// (see src/coders/binary_json_spec.md)
     /// @param compressed use gzip compression
-    extern bool write_binary_json(
+    bool write_binary_json(
         fs::path filename, 
         const dynamic::Map* obj, 
         bool compressed=false
     );
 
-    extern bool read(fs::path, char* data, size_t size);
-    extern ubyte* read_bytes(fs::path, size_t& length);
-    extern std::string read_string(fs::path filename);
+    bool read(fs::path, char* data, size_t size);
+    std::unique_ptr<ubyte[]> read_bytes(fs::path, size_t& length);
+    std::string read_string(fs::path filename);
 
     /// @brief Read JSON or BJSON file
     /// @param file *.json or *.bjson file
-    extern std::unique_ptr<dynamic::Map> read_json(fs::path file);
-    extern std::unique_ptr<dynamic::Map> read_binary_json(fs::path file);
-    extern std::vector<std::string> read_list(fs::path file);
+    std::unique_ptr<dynamic::Map> read_json(fs::path file);
+    std::unique_ptr<dynamic::Map> read_binary_json(fs::path file);
+    std::vector<std::string> read_list(fs::path file);
 }
 
-#endif /* FILES_FILES_H_ */
+#endif /* FILES_FILES_H_ */