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author | Tom Tromey <tromey@redhat.com> | 2005-07-16 01:27:14 +0000 |
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committer | Tom Tromey <tromey@gcc.gnu.org> | 2005-07-16 01:27:14 +0000 |
commit | b0fa81eea9a270f23d6ad67ca7a6d25c18d20da1 (patch) | |
tree | 8762d1f992e2f725a6bde1ff966ed6f1e5f4f823 /libjava/java/lang/Long.java | |
parent | ea54b29342c8506acb4f858c68340c44b72e3532 (diff) | |
download | gcc-b0fa81eea9a270f23d6ad67ca7a6d25c18d20da1.zip gcc-b0fa81eea9a270f23d6ad67ca7a6d25c18d20da1.tar.gz gcc-b0fa81eea9a270f23d6ad67ca7a6d25c18d20da1.tar.bz2 |
Major merge with Classpath.
Removed many duplicate files.
* HACKING: Updated.x
* classpath: Imported new directory.
* standard.omit: New file.
* Makefile.in, aclocal.m4, configure: Rebuilt.
* sources.am: New file.
* configure.ac: Run Classpath configure script. Moved code around
to support. Disable xlib AWT peers (temporarily).
* Makefile.am (SUBDIRS): Added 'classpath'
(JAVAC): Removed.
(AM_CPPFLAGS): Added more -I options.
(BOOTCLASSPATH): Simplified.
Completely redid how sources are built.
Include sources.am.
* include/Makefile.am (tool_include__HEADERS): Removed jni.h.
* include/jni.h: Removed (in Classpath).
* scripts/classes.pl: Updated to look at built classes.
* scripts/makemake.tcl: New file.
* testsuite/libjava.jni/jni.exp (gcj_jni_compile_c_to_so): Added
-I options.
(gcj_jni_invocation_compile_c_to_binary): Likewise.
From-SVN: r102082
Diffstat (limited to 'libjava/java/lang/Long.java')
-rw-r--r-- | libjava/java/lang/Long.java | 614 |
1 files changed, 0 insertions, 614 deletions
diff --git a/libjava/java/lang/Long.java b/libjava/java/lang/Long.java deleted file mode 100644 index 703eab8..0000000 --- a/libjava/java/lang/Long.java +++ /dev/null @@ -1,614 +0,0 @@ -/* Long.java -- object wrapper for long - Copyright (C) 1998, 1999, 2001, 2002, 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.lang; - -/** - * Instances of class <code>Long</code> represent primitive - * <code>long</code> values. - * - * Additionally, this class provides various helper functions and variables - * related to longs. - * - * @author Paul Fisher - * @author John Keiser - * @author Warren Levy - * @author Eric Blake (ebb9@email.byu.edu) - * @since 1.0 - * @status updated to 1.4 - */ -public final class Long extends Number implements Comparable -{ - /** - * Compatible with JDK 1.0.2+. - */ - private static final long serialVersionUID = 4290774380558885855L; - - /** - * The minimum value a <code>long</code> can represent is - * -9223372036854775808L (or -2<sup>63</sup>). - */ - public static final long MIN_VALUE = 0x8000000000000000L; - - /** - * The maximum value a <code>long</code> can represent is - * 9223372036854775807 (or 2<sup>63</sup> - 1). - */ - public static final long MAX_VALUE = 0x7fffffffffffffffL; - - /** - * The primitive type <code>long</code> is represented by this - * <code>Class</code> object. - * @since 1.1 - */ - public static final Class TYPE = VMClassLoader.getPrimitiveClass ('J'); - - /** - * The immutable value of this Long. - * - * @serial the wrapped long - */ - private final long value; - - /** - * Create a <code>Long</code> object representing the value of the - * <code>long</code> argument. - * - * @param value the value to use - */ - public Long(long value) - { - this.value = value; - } - - /** - * Create a <code>Long</code> object representing the value of the - * argument after conversion to a <code>long</code>. - * - * @param s the string to convert - * @throws NumberFormatException if the String does not contain a long - * @see #valueOf(String) - */ - public Long(String s) - { - value = parseLong(s, 10, false); - } - - /** - * Converts the <code>long</code> to a <code>String</code> using - * the specified radix (base). If the radix exceeds - * <code>Character.MIN_RADIX</code> or <code>Character.MAX_RADIX</code>, 10 - * is used instead. If the result is negative, the leading character is - * '-' ('\\u002D'). The remaining characters come from - * <code>Character.forDigit(digit, radix)</code> ('0'-'9','a'-'z'). - * - * @param num the <code>long</code> to convert to <code>String</code> - * @param radix the radix (base) to use in the conversion - * @return the <code>String</code> representation of the argument - */ - public static String toString(long num, int radix) - { - // Use the Integer toString for efficiency if possible. - if ((int) num == num) - return Integer.toString((int) num, radix); - - if (radix < Character.MIN_RADIX || radix > Character.MAX_RADIX) - radix = 10; - - // For negative numbers, print out the absolute value w/ a leading '-'. - // Use an array large enough for a binary number. - char[] buffer = new char[65]; - int i = 65; - boolean isNeg = false; - if (num < 0) - { - isNeg = true; - num = -num; - - // When the value is MIN_VALUE, it overflows when made positive - if (num < 0) - { - buffer[--i] = digits[(int) (-(num + radix) % radix)]; - num = -(num / radix); - } - } - - do - { - buffer[--i] = digits[(int) (num % radix)]; - num /= radix; - } - while (num > 0); - - if (isNeg) - buffer[--i] = '-'; - - // Package constructor avoids an array copy. - return new String(buffer, i, 65 - i, true); - } - - /** - * Converts the <code>long</code> to a <code>String</code> assuming it is - * unsigned in base 16. - * - * @param l the <code>long</code> to convert to <code>String</code> - * @return the <code>String</code> representation of the argument - */ - public static String toHexString(long l) - { - return toUnsignedString(l, 4); - } - - /** - * Converts the <code>long</code> to a <code>String</code> assuming it is - * unsigned in base 8. - * - * @param l the <code>long</code> to convert to <code>String</code> - * @return the <code>String</code> representation of the argument - */ - public static String toOctalString(long l) - { - return toUnsignedString(l, 3); - } - - /** - * Converts the <code>long</code> to a <code>String</code> assuming it is - * unsigned in base 2. - * - * @param l the <code>long</code> to convert to <code>String</code> - * @return the <code>String</code> representation of the argument - */ - public static String toBinaryString(long l) - { - return toUnsignedString(l, 1); - } - - /** - * Converts the <code>long</code> to a <code>String</code> and assumes - * a radix of 10. - * - * @param num the <code>long</code> to convert to <code>String</code> - * @return the <code>String</code> representation of the argument - * @see #toString(long, int) - */ - public static String toString(long num) - { - return toString(num, 10); - } - - /** - * Converts the specified <code>String</code> into an <code>int</code> - * using the specified radix (base). The string must not be <code>null</code> - * or empty. It may begin with an optional '-', which will negate the answer, - * provided that there are also valid digits. Each digit is parsed as if by - * <code>Character.digit(d, radix)</code>, and must be in the range - * <code>0</code> to <code>radix - 1</code>. Finally, the result must be - * within <code>MIN_VALUE</code> to <code>MAX_VALUE</code>, inclusive. - * Unlike Double.parseDouble, you may not have a leading '+'; and 'l' or - * 'L' as the last character is only valid in radices 22 or greater, where - * it is a digit and not a type indicator. - * - * @param str the <code>String</code> to convert - * @param radix the radix (base) to use in the conversion - * @return the <code>String</code> argument converted to <code>long</code> - * @throws NumberFormatException if <code>s</code> cannot be parsed as a - * <code>long</code> - */ - public static long parseLong(String str, int radix) - { - return parseLong(str, radix, false); - } - - /** - * Converts the specified <code>String</code> into a <code>long</code>. - * This function assumes a radix of 10. - * - * @param s the <code>String</code> to convert - * @return the <code>int</code> value of <code>s</code> - * @throws NumberFormatException if <code>s</code> cannot be parsed as a - * <code>long</code> - * @see #parseLong(String, int) - */ - public static long parseLong(String s) - { - return parseLong(s, 10, false); - } - - /** - * Creates a new <code>Long</code> object using the <code>String</code> - * and specified radix (base). - * - * @param s the <code>String</code> to convert - * @param radix the radix (base) to convert with - * @return the new <code>Long</code> - * @throws NumberFormatException if <code>s</code> cannot be parsed as a - * <code>long</code> - * @see #parseLong(String, int) - */ - public static Long valueOf(String s, int radix) - { - return new Long(parseLong(s, radix, false)); - } - - /** - * Creates a new <code>Long</code> object using the <code>String</code>, - * assuming a radix of 10. - * - * @param s the <code>String</code> to convert - * @return the new <code>Long</code> - * @throws NumberFormatException if <code>s</code> cannot be parsed as a - * <code>long</code> - * @see #Long(String) - * @see #parseLong(String) - */ - public static Long valueOf(String s) - { - return new Long(parseLong(s, 10, false)); - } - - /** - * Convert the specified <code>String</code> into a <code>Long</code>. - * The <code>String</code> may represent decimal, hexadecimal, or - * octal numbers. - * - * <p>The extended BNF grammar is as follows:<br> - * <pre> - * <em>DecodableString</em>: - * ( [ <code>-</code> ] <em>DecimalNumber</em> ) - * | ( [ <code>-</code> ] ( <code>0x</code> | <code>0X</code> - * | <code>#</code> ) <em>HexDigit</em> { <em>HexDigit</em> } ) - * | ( [ <code>-</code> ] <code>0</code> { <em>OctalDigit</em> } ) - * <em>DecimalNumber</em>: - * <em>DecimalDigit except '0'</em> { <em>DecimalDigit</em> } - * <em>DecimalDigit</em>: - * <em>Character.digit(d, 10) has value 0 to 9</em> - * <em>OctalDigit</em>: - * <em>Character.digit(d, 8) has value 0 to 7</em> - * <em>DecimalDigit</em>: - * <em>Character.digit(d, 16) has value 0 to 15</em> - * </pre> - * Finally, the value must be in the range <code>MIN_VALUE</code> to - * <code>MAX_VALUE</code>, or an exception is thrown. Note that you cannot - * use a trailing 'l' or 'L', unlike in Java source code. - * - * @param str the <code>String</code> to interpret - * @return the value of the String as a <code>Long</code> - * @throws NumberFormatException if <code>s</code> cannot be parsed as a - * <code>long</code> - * @throws NullPointerException if <code>s</code> is null - * @since 1.2 - */ - public static Long decode(String str) - { - return new Long(parseLong(str, 10, true)); - } - - /** - * Return the value of this <code>Long</code> as a <code>byte</code>. - * - * @return the byte value - */ - public byte byteValue() - { - return (byte) value; - } - - /** - * Return the value of this <code>Long</code> as a <code>short</code>. - * - * @return the short value - */ - public short shortValue() - { - return (short) value; - } - - /** - * Return the value of this <code>Long</code> as an <code>int</code>. - * - * @return the int value - */ - public int intValue() - { - return (int) value; - } - - /** - * Return the value of this <code>Long</code>. - * - * @return the long value - */ - public long longValue() - { - return value; - } - - /** - * Return the value of this <code>Long</code> as a <code>float</code>. - * - * @return the float value - */ - public float floatValue() - { - return value; - } - - /** - * Return the value of this <code>Long</code> as a <code>double</code>. - * - * @return the double value - */ - public double doubleValue() - { - return value; - } - - /** - * Converts the <code>Long</code> value to a <code>String</code> and - * assumes a radix of 10. - * - * @return the <code>String</code> representation - */ - public String toString() - { - return toString(value, 10); - } - - /** - * Return a hashcode representing this Object. <code>Long</code>'s hash - * code is calculated by <code>(int) (value ^ (value >> 32))</code>. - * - * @return this Object's hash code - */ - public int hashCode() - { - return (int) (value ^ (value >>> 32)); - } - - /** - * Returns <code>true</code> if <code>obj</code> is an instance of - * <code>Long</code> and represents the same long value. - * - * @param obj the object to compare - * @return whether these Objects are semantically equal - */ - public boolean equals(Object obj) - { - return obj instanceof Long && value == ((Long) obj).value; - } - - /** - * Get the specified system property as a <code>Long</code>. The - * <code>decode()</code> method will be used to interpret the value of - * the property. - * - * @param nm the name of the system property - * @return the system property as a <code>Long</code>, or null if the - * property is not found or cannot be decoded - * @throws SecurityException if accessing the system property is forbidden - * @see System#getProperty(String) - * @see #decode(String) - */ - public static Long getLong(String nm) - { - return getLong(nm, null); - } - - /** - * Get the specified system property as a <code>Long</code>, or use a - * default <code>long</code> value if the property is not found or is not - * decodable. The <code>decode()</code> method will be used to interpret - * the value of the property. - * - * @param nm the name of the system property - * @param val the default value - * @return the value of the system property, or the default - * @throws SecurityException if accessing the system property is forbidden - * @see System#getProperty(String) - * @see #decode(String) - */ - public static Long getLong(String nm, long val) - { - Long result = getLong(nm, null); - return result == null ? new Long(val) : result; - } - - /** - * Get the specified system property as a <code>Long</code>, or use a - * default <code>Long</code> value if the property is not found or is - * not decodable. The <code>decode()</code> method will be used to - * interpret the value of the property. - * - * @param nm the name of the system property - * @param def the default value - * @return the value of the system property, or the default - * @throws SecurityException if accessing the system property is forbidden - * @see System#getProperty(String) - * @see #decode(String) - */ - public static Long getLong(String nm, Long def) - { - if (nm == null || "".equals(nm)) - return def; - nm = System.getProperty(nm); - if (nm == null) - return def; - try - { - return decode(nm); - } - catch (NumberFormatException e) - { - return def; - } - } - - /** - * Compare two Longs numerically by comparing their <code>long</code> - * values. The result is positive if the first is greater, negative if the - * second is greater, and 0 if the two are equal. - * - * @param l the Long to compare - * @return the comparison - * @since 1.2 - */ - public int compareTo(Long l) - { - if (value == l.value) - return 0; - // Returns just -1 or 1 on inequality; doing math might overflow the long. - return value > l.value ? 1 : -1; - } - - /** - * Behaves like <code>compareTo(Long)</code> unless the Object - * is not a <code>Long</code>. - * - * @param o the object to compare - * @return the comparison - * @throws ClassCastException if the argument is not a <code>Long</code> - * @see #compareTo(Long) - * @see Comparable - * @since 1.2 - */ - public int compareTo(Object o) - { - return compareTo((Long) o); - } - - /** - * Helper for converting unsigned numbers to String. - * - * @param num the number - * @param exp log2(digit) (ie. 1, 3, or 4 for binary, oct, hex) - */ - private static String toUnsignedString(long num, int exp) - { - // Use the Integer toUnsignedString for efficiency if possible. - // If NUM<0 then this particular optimization doesn't work - // properly. - if (num >= 0 && (int) num == num) - return Integer.toUnsignedString((int) num, exp); - - // Use an array large enough for a binary number. - int mask = (1 << exp) - 1; - char[] buffer = new char[64]; - int i = 64; - do - { - buffer[--i] = digits[(int) num & mask]; - num >>>= exp; - } - while (num != 0); - - // Package constructor avoids an array copy. - return new String(buffer, i, 64 - i, true); - } - - /** - * Helper for parsing longs. - * - * @param str the string to parse - * @param radix the radix to use, must be 10 if decode is true - * @param decode if called from decode - * @return the parsed long value - * @throws NumberFormatException if there is an error - * @throws NullPointerException if decode is true and str is null - * @see #parseLong(String, int) - * @see #decode(String) - */ - private static long parseLong(String str, int radix, boolean decode) - { - if (! decode && str == null) - throw new NumberFormatException(); - int index = 0; - int len = str.length(); - boolean isNeg = false; - if (len == 0) - throw new NumberFormatException(); - int ch = str.charAt(index); - if (ch == '-') - { - if (len == 1) - throw new NumberFormatException(); - isNeg = true; - ch = str.charAt(++index); - } - if (decode) - { - if (ch == '0') - { - if (++index == len) - return 0; - if ((str.charAt(index) & ~('x' ^ 'X')) == 'X') - { - radix = 16; - index++; - } - else - radix = 8; - } - else if (ch == '#') - { - radix = 16; - index++; - } - } - if (index == len) - throw new NumberFormatException(); - - long max = MAX_VALUE / radix; - // We can't directly write `max = (MAX_VALUE + 1) / radix'. - // So instead we fake it. - if (isNeg && MAX_VALUE % radix == radix - 1) - ++max; - - long val = 0; - while (index < len) - { - if (val < 0 || val > max) - throw new NumberFormatException(); - - ch = Character.digit(str.charAt(index++), radix); - val = val * radix + ch; - if (ch < 0 || (val < 0 && (! isNeg || val != MIN_VALUE))) - throw new NumberFormatException(); - } - return isNeg ? -val : val; - } -} |