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src/java.base/share/classes/java/lang/String.java

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rev 49071 : [mq]: 4993841
   1 /*
   2  * Copyright (c) 1994, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


3091         if (offset < 0 || count < 0 || offset > length - count) {
3092             throw new StringIndexOutOfBoundsException(
3093                 "offset " + offset + ", count " + count + ", length " + length);
3094         }
3095     }
3096 
3097     /*
3098      * Check {@code begin}, {@code end} against {@code 0} and {@code length}
3099      * bounds.
3100      *
3101      * @throws  StringIndexOutOfBoundsException
3102      *          If {@code begin} is negative, {@code begin} is greater than
3103      *          {@code end}, or {@code end} is greater than {@code length}.
3104      */
3105     static void checkBoundsBeginEnd(int begin, int end, int length) {
3106         if (begin < 0 || begin > end || end > length) {
3107             throw new StringIndexOutOfBoundsException(
3108                 "begin " + begin + ", end " + end + ", length " + length);
3109         }
3110     }





















3111 }
   1 /*
   2  * Copyright (c) 1994, 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any


3091         if (offset < 0 || count < 0 || offset > length - count) {
3092             throw new StringIndexOutOfBoundsException(
3093                 "offset " + offset + ", count " + count + ", length " + length);
3094         }
3095     }
3096 
3097     /*
3098      * Check {@code begin}, {@code end} against {@code 0} and {@code length}
3099      * bounds.
3100      *
3101      * @throws  StringIndexOutOfBoundsException
3102      *          If {@code begin} is negative, {@code begin} is greater than
3103      *          {@code end}, or {@code end} is greater than {@code length}.
3104      */
3105     static void checkBoundsBeginEnd(int begin, int end, int length) {
3106         if (begin < 0 || begin > end || end > length) {
3107             throw new StringIndexOutOfBoundsException(
3108                 "begin " + begin + ", end " + end + ", length " + length);
3109         }
3110     }
3111 
3112     /**
3113      * Returns the string representation of the {@code codePoint}
3114      * argument.
3115      *
3116      * @param   codepoint   a {@code codePoint}.
3117      * @return  a string of length {@code 1} or {@code 2} containing
3118      *          as its single character the argument {@code codePoint}.
3119      * @throws IllegalArgumentException if the specified
3120      *          {@code codePoint} is not a {@linkplain Character#isValidCodePoint
3121      *          valid Unicode code point}.
3122      */
3123     static String valueOfCodePoint(int cp) {
3124         if (COMPACT_STRINGS && StringLatin1.canEncode(cp)) {
3125             return new String(StringLatin1.toBytes((char)cp), LATIN1);
3126         } else if (Character.isValidCodePoint(cp)) {
3127             return new String(StringUTF16.toBytes(cp), UTF16);
3128         } else {
3129             throw new IllegalArgumentException();
3130         }
3131     }
3132 }
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