re PR libgcj/16204 (File I/O fails on files >= 2^31 bytes (2GB))

2004-07-14  Bryce McKinlay  <mckinlay@redhat.com>

	PR libgcj/16204
	* Makefile.am (AM_CXXFLAGS): Add -D_FILE_OFFSET_BITS=64 to enable
	large file support.
	* Makefile.in: Rebuilt.
	* testsuite/libjava.lang/LargeFile.java: New test case.
	* testsuite/libjava.lang/LargeFile.out: New file.

From-SVN: r84733

1 files changed, 36 insertions, 0 deletions

diff --git a/libjava/testsuite/libjava.lang/LargeFile.java b/libjava/testsuite/libjava.lang/LargeFile.java
new file mode 100644
index 0000000..1bb8aec
--- /dev/null
+++ b/libjava/testsuite/libjava.lang/LargeFile.java
@@ -0,0 +1,36 @@
+/* Test to ensure files >= 2^31 bytes are supported. */
+
+import java.io.*;
+
+public class LargeFile
+{
+  public static void main(String[] args) throws IOException
+  {
+    File file = new File("LargeFile.tmp");
+
+    try
+      {
+	RandomAccessFile rfile = new RandomAccessFile(file, "rw");
+
+	long pos = (long) Math.pow(2, 31);
+
+	rfile.seek(pos);
+	rfile.write('O');
+	rfile.write('K');
+	rfile.close();
+
+	// Re-open, read byte back using FileInputStream and clean up.
+
+	FileInputStream fis = new FileInputStream(file);
+	fis.skip(pos);
+	System.out.print((char) fis.read());
+	System.out.println((char) fis.read());
+	fis.close();
+      }
+    finally
+      {
+        if (file.exists())
+	  file.delete();
+      }
+  }
+}