Add ::tell().

2 files changed, 25 insertions, 0 deletions

diff --git a/src/file.cc b/src/file.cc
index 74db8396..8ab50293 100644
--- a/src/file.cc
+++ b/src/file.cc
@@ -175,6 +175,27 @@ File::seek(int64_t offset, int whence)
 }
 
 
+int64_t
+File::tell()
+{
+	DCP_ASSERT(_file);
+#ifdef LIBDCP_WINDOWS
+	return _ftelli64(_file);
+#else
+	return ftell(_file);
+#endif
+}
+
+
+
+int
+File::error ()
+{
+	DCP_ASSERT(_file);
+	return ferror(_file);
+}
+
+
 /** Windows can't "by default" cope with paths longer than 260 characters, so if you pass such a path to
  *  any boost::filesystem method it will fail.  There is a "fix" for this, which is to prepend
  *  the string \\?\ to the path.  This will make it work, so long as:
diff --git a/src/file.h b/src/file.h
index ec13fc82..037251c1 100644
--- a/src/file.h
+++ b/src/file.h
@@ -73,6 +73,10 @@ public:
 	char *gets(char *s, int size);
 	/** fseek/fseeki64 wrapper */
 	int seek(int64_t offset, int whence);
+	/** ftell/ftelli64 wrapper */
+	int64_t tell();
+	/** ferror wrapper */
+	int error();
 
 	void checked_write(void const * ptr, size_t size);
 	void checked_read(void* ptr, size_t size);