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Diffstat (limited to 'libjava/java/lang/VMDouble.java')
-rw-r--r-- | libjava/java/lang/VMDouble.java | 111 |
1 files changed, 0 insertions, 111 deletions
diff --git a/libjava/java/lang/VMDouble.java b/libjava/java/lang/VMDouble.java deleted file mode 100644 index 9205eb3..0000000 --- a/libjava/java/lang/VMDouble.java +++ /dev/null @@ -1,111 +0,0 @@ -/* VMDouble.java -- VM Specific Double methods - Copyright (C) 2003, 2005, 2006 Free Software Foundation - -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; - -import gnu.classpath.Configuration; - -/* - * This class is a reference version, mainly for compiling a class library - * jar. It is likely that VM implementers replace this with their own - * version that can communicate effectively with the VM. - */ - -/** - * Code relocated from java.lang.Double by - * @author Dave Grove (groved@us.ibm.com) - */ -final class VMDouble -{ - /** - * Convert the double to the IEEE 754 floating-point "double format" bit - * layout. Bit 63 (the most significant) is the sign bit, bits 62-52 - * (masked by 0x7ff0000000000000L) represent the exponent, and bits 51-0 - * (masked by 0x000fffffffffffffL) are the mantissa. This function - * collapses all versions of NaN to 0x7ff8000000000000L. The result of this - * function can be used as the argument to - * <code>Double.longBitsToDouble(long)</code> to obtain the original - * <code>double</code> value. - * - * @param value the <code>double</code> to convert - * @return the bits of the <code>double</code> - * @see #longBitsToDouble(long) - */ - public static native long doubleToLongBits(double value); - - /** - * Convert the double to the IEEE 754 floating-point "double format" bit - * layout. Bit 63 (the most significant) is the sign bit, bits 62-52 - * (masked by 0x7ff0000000000000L) represent the exponent, and bits 51-0 - * (masked by 0x000fffffffffffffL) are the mantissa. This function - * leaves NaN alone, rather than collapsing to a canonical value. The - * result of this function can be used as the argument to - * <code>Double.longBitsToDouble(long)</code> to obtain the original - * <code>double</code> value. - * - * @param value the <code>double</code> to convert - * @return the bits of the <code>double</code> - * @see #longBitsToDouble(long) - */ - public static native long doubleToRawLongBits(double value); - - /** - * Convert the argument in IEEE 754 floating-point "double format" bit - * layout to the corresponding float. Bit 63 (the most significant) is the - * sign bit, bits 62-52 (masked by 0x7ff0000000000000L) represent the - * exponent, and bits 51-0 (masked by 0x000fffffffffffffL) are the mantissa. - * This function leaves NaN alone, so that you can recover the bit pattern - * with <code>Double.doubleToRawLongBits(double)</code>. - * - * @param bits the bits to convert - * @return the <code>double</code> represented by the bits - * @see #doubleToLongBits(double) - * @see #doubleToRawLongBits(double) - */ - public static native double longBitsToDouble(long bits); - - /** - * Helper method to convert to string. - * - * @param d the double to convert - * @param isFloat true if the conversion is requested by Float (results in - * fewer digits) - */ - public static native String toString(double d, boolean isFloat); - - public static native double parseDouble(String str); -} |