From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- libjava/classpath/java/io/DataOutput.java | 325 ++++++++++++++++++++++++++++++ 1 file changed, 325 insertions(+) create mode 100644 libjava/classpath/java/io/DataOutput.java (limited to 'libjava/classpath/java/io/DataOutput.java') diff --git a/libjava/classpath/java/io/DataOutput.java b/libjava/classpath/java/io/DataOutput.java new file mode 100644 index 000000000..6eee4b702 --- /dev/null +++ b/libjava/classpath/java/io/DataOutput.java @@ -0,0 +1,325 @@ +/* DataOutput.java -- Interface for writing data from a stream + Copyright (C) 1998, 1999, 2001, 2003, 2005 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package java.io; + +/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 + * "The Java Language Specification", ISBN 0-201-63451-1 + * Status: Complete to version 1.1. + */ + +/** + * This interface is implemented by classes that can wrte data to streams + * from Java primitive types. This data can subsequently be read back + * by classes implementing the DataInput interface. + * + * @author Aaron M. Renn (arenn@urbanophile.com) + * @author Tom Tromey (tromey@cygnus.com) + * + * @see DataInput + */ +public interface DataOutput +{ + /** + * This method writes a Java boolean value to an output stream. If + * value is true, a byte with the value of + * 1 will be written, otherwise a byte with the value of 0 will be + * written. + * + * The value written can be read using the readBoolean + * method in DataInput. + * + * @param value The boolean value to write + * + * @exception IOException If an error occurs + * + * @see DataInput#readBoolean + */ + void writeBoolean(boolean value) throws IOException; + + /** + * This method writes a Java byte value to an output stream. The + * byte to be written will be in the lowest 8 bits of the + * int value passed. + * + * The value written can be read using the readByte or + * readUnsignedByte methods in DataInput. + * + * @param value The int value to write + * + * @exception IOException If an error occurs + * + * @see DataInput#readByte + * @see DataInput#readUnsignedByte + */ + void writeByte(int value) throws IOException; + + /** + * This method writes a Java char value to an output stream. The + * char to be written will be in the lowest 16 bits of the int + * value passed. These bytes will be written "big endian". That is, + * with the high byte written first in the following manner: + *

+ * byte0 = (byte)((value & 0xFF00) >> 8);
+ * byte1 = (byte)(value & 0x00FF); + *

+ * + * The value written can be read using the readChar + * method in DataInput. + * + * @param value The char value to write + * + * @exception IOException If an error occurs + * + * @see DataInput#readChar + */ + void writeChar(int value) throws IOException; + + /** + * This method writes a Java short value to an output stream. The + * char to be written will be in the lowest 16 bits of the int + * value passed. These bytes will be written "big endian". That is, + * with the high byte written first in the following manner: + *

+ * byte0 = (byte)((value & 0xFF00) >> 8);
+ * byte1 = (byte)(value & 0x00FF); + *

+ * + * The value written can be read using the readShort and + * readUnsignedShort methods in DataInput. + * + * @param value The int value to write as a 16-bit value + * + * @exception IOException If an error occurs + * + * @see DataInput#readShort + * @see DataInput#readUnsignedShort + */ + void writeShort(int value) throws IOException; + + /** + * This method writes a Java int value to an output stream. The 4 bytes + * of the passed value will be written "big endian". That is, with + * the high byte written first in the following manner: + *

+ * byte0 = (byte)((value & 0xFF000000) >> 24);
+ * byte1 = (byte)((value & 0x00FF0000) >> 16);
+ * byte2 = (byte)((value & 0x0000FF00) >> 8);
+ * byte3 = (byte)(value & 0x000000FF); + *

+ * + * The value written can be read using the readInt + * method in DataInput. + * + * @param value The int value to write + * + * @exception IOException If an error occurs + * + * @see DataInput#readInt + */ + void writeInt(int value) throws IOException; + + /** + * This method writes a Java long value to an output stream. The 8 bytes + * of the passed value will be written "big endian". That is, with + * the high byte written first in the following manner: + *

+ * byte0 = (byte)((value & 0xFF00000000000000L) >> 56);
+ * byte1 = (byte)((value & 0x00FF000000000000L) >> 48);
+ * byte2 = (byte)((value & 0x0000FF0000000000L) >> 40);
+ * byte3 = (byte)((value & 0x000000FF00000000L) >> 32);
+ * byte4 = (byte)((value & 0x00000000FF000000L) >> 24);
+ * byte5 = (byte)((value & 0x0000000000FF0000L) >> 16);
+ * byte6 = (byte)((value & 0x000000000000FF00L) >> 8);
+ * byte7 = (byte)(value & 0x00000000000000FFL); + *

+ * + * The value written can be read using the readLong + * method in DataInput. + * + * @param value The long value to write + * + * @exception IOException If an error occurs + * + * @see DataInput#readLong + */ + void writeLong(long value) throws IOException; + + /** + * This method writes a Java float value to the stream. This + * value is written by first calling the method + * Float.floatToIntBits + * to retrieve an int representing the floating point number, + * then writing this int value to the stream exactly the same + * as the writeInt() method does. + * + * The value written can be read using the readFloat + * method in DataInput. + * + * @param value The float value to write + * + * @exception IOException If an error occurs + * + * @see #writeInt + * @see DataInput#readFloat + * @see Float#floatToIntBits + */ + void writeFloat(float value) throws IOException; + + /** + * This method writes a Java double value to the stream. This + * value is written by first calling the method + * Double.doubleToLongBits + * to retrieve an long representing the floating point number, + * then writing this long value to the stream exactly the same + * as the writeLong() method does. + * + * The value written can be read using the readDouble + * method in DataInput. + * + * @param value The double value to write + * + * @exception IOException If any other error occurs + * + * @see #writeLong + * @see DataInput#readDouble + * @see Double#doubleToLongBits + */ + void writeDouble(double value) throws IOException; + + /** + * This method writes all the bytes in a String out to the + * stream. One byte is written for each character in the + * String. + * The high eight bits of each character are discarded, thus this + * method is inappropriate for completely representing Unicode characters. + * + * @param value The String to write + * + * @exception IOException If an error occurs + */ + void writeBytes(String value) throws IOException; + + /** + * This method writes all the characters of a String to an + * output stream as an array of char's. Each character + * is written using the method specified in the writeChar + * method. + * + * @param value The String to write + * + * @exception IOException If an error occurs + * + * @see #writeChar(int) + */ + void writeChars(String value) throws IOException; + + /** + * This method writes a Java String to the stream in a modified + * UTF-8 format. First, two bytes are written to the stream indicating the + * number of bytes to follow. This is written in the form of a Java + * short value in the same manner used by the + * writeShort method. Note that this is the number of + * bytes in the + * encoded String not the String length. Next + * come the encoded characters. Each character in the String + * is encoded as either one, two or three bytes. For characters in the + * range of \u0001 to \u007F, one byte is used. + * The character + * value goes into bits 0-7 and bit eight is 0. For characters in the range + * of \u0080 to \u007FF, two bytes are used. Bits + * 6-10 of the character value are encoded bits 0-4 of the first byte, with + * the high bytes having a value of "110". Bits 0-5 of the character value + * are stored in bits 0-5 of the second byte, with the high bits set to + * "10". This type of encoding is also done for the null character + * \u0000. This eliminates any C style NUL character values + * in the output. All remaining characters are stored as three bytes. + * Bits 12-15 of the character value are stored in bits 0-3 of the first + * byte. The high bits of the first bytes are set to "1110". Bits 6-11 + * of the character value are stored in bits 0-5 of the second byte. The + * high bits of the second byte are set to "10". And bits 0-5 of the + * character value are stored in bits 0-5 of byte three, with the high bits + * of that byte set to "10". + * + * The value written can be read using the readUTF + * method in DataInput. + * + * @param value The String to write + * + * @exception IOException If an error occurs + * + * @see DataInput#readUTF + */ + void writeUTF(String value) throws IOException; + + /** + * This method writes an 8-bit value (passed into the method as a Java + * int) to an output stream. The low 8 bits of the + * passed value are written. + * + * @param value The byte to write to the output stream + * + * @exception IOException If an error occurs + */ + void write(int value) throws IOException; + + /** + * This method writes the raw byte array passed in to the output stream. + * + * @param buf The byte array to write + * + * @exception IOException If an error occurs + */ + void write(byte[] buf) throws IOException; + + /** + * This method writes raw bytes from the passed array buf + * starting + * offset bytes into the buffer. The number of bytes + * written will be exactly len. + * + * @param buf The buffer from which to write the data + * @param offset The offset into the buffer to start writing data from + * @param len The number of bytes to write from the buffer to the output + * stream + * + * @exception IOException If any other error occurs + */ + void write(byte[] buf, int offset, int len) throws IOException; + +} // interface DataOutput -- cgit v1.2.3