Splitting file operations from the rest of the code is postponed

src/file_ops.inl

@@ -1,60 +1 @@
-/* Interface */
-#include <stdint.h>
-
-/* Handle */
-typedef struct cv_file CV_FILE;
-
-/* Callbacks for memory mapped files */
-typedef struct cv_filesys *CV_FILESYS;
-
-/* Get handle for file "path", using CV_FILESYS options. Out: file */
-CV_FILE cvf_openhandle(const char *path_utf8, CV_FILESYS fsys);
-
-/* Release handle information */
-int cvf_closehandle(CV_FILE file);
-
-/* If file does not exist, return 0 */
-int cvf_file_location(CV_FILE file);
-
-/* File size, -1 on error */
-int64_t cvf_size(CV_FILE file);
-
-/* Is directory */
-int cvf_is_directory(CV_FILE file);
-
-/* Can be written / is not read only */
-int cvf_is_writable(CV_FILE file);
-
-/* Can be deleted / is not read only */
-int cvf_is_deletable(CV_FILE file);
-
-/* File date, =0 on error */
-int64_t cvf_last_modified(CV_FILE file);
-
-/* Is zipped */
-int cvf_is_gzipped(CV_FILE file);
-
-/* Open file for reading, writing or appending. Use filename from cvf_info. */
-int cvf_openfile(CV_FILE file, int access_mode);
-
-/* Close file */
-int cvf_closefile(CV_FILE file);
-
-/* Write data to file. Return -1 on error. */
-int32_t cvf_write(CV_FILE file, const void *block_ptr, int32_t block_size);
-
-/* Read data from file. Return -1 on error. */
-int32_t cvf_read(CV_FILE file, void *block_ptr, int32_t block_size);
-
-/* Callbacks for file system */
-struct cv_filesys {
-	int (*cv_get_file_disp)(const char *path_utf8, void *user_arg);    
-	void *user_arg;
-};
-
-
-#if defined(_WIN32)
-#else
-
-
-#endif
+/* currently not required */