libjava/java/lang/natStringBuffer.cc

   1 // natStringBuffer.cc - Implementation of java.lang.StringBuffer native methods.
   2
   3 /* Copyright (C) 2001, 2003  Free Software Foundation
   4
   5    This file is part of libgcj.
   6
   7 This software is copyrighted work licensed under the terms of the
   8 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   9 details.  */
  10
  11 #include <config.h>
  12 #include <gcj/cni.h>
  13 #include <java/lang/StringBuffer.h>
  14
  15 java::lang::StringBuffer*
  16 java::lang::StringBuffer::append (jint num)
  17 {
  18   // Use an array large enough for "-2147483648"; i.e. 11 chars.
  19   jchar buffer[11];
  20   int i = _Jv_FormatInt (buffer+11, num);
  21   JvSynchronize dummy (this);
  22   jint needed = count + i;
  23   ensureCapacity_unsynchronized (needed);
  24   jchar* dst = elements (value) + count;
  25   jchar* src = buffer+11-i;
  26   while (--i >= 0)
  27     *dst++ = *src++;
  28   count = needed;
  29   return this;
  30 }
  31
  32 jboolean
  33 java::lang::StringBuffer::regionMatches(jint toffset, jstring other)
  34 {
  35   jint len = other->count;
  36   jchar *tptr = elements(value) + toffset;
  37   jchar *optr = JvGetStringChars(other);
  38   while (--len >= 0)
  39     if (*tptr++ != *optr++)
  40       return false;
  41   return true;
  42 }