1*cdf0e10cSrcweir /************************************************************************* 2*cdf0e10cSrcweir * 3*cdf0e10cSrcweir * The Contents of this file are made available subject to the terms of 4*cdf0e10cSrcweir * the BSD license. 5*cdf0e10cSrcweir * 6*cdf0e10cSrcweir * Copyright 2000, 2010 Oracle and/or its affiliates. 7*cdf0e10cSrcweir * All rights reserved. 8*cdf0e10cSrcweir * 9*cdf0e10cSrcweir * Redistribution and use in source and binary forms, with or without 10*cdf0e10cSrcweir * modification, are permitted provided that the following conditions 11*cdf0e10cSrcweir * are met: 12*cdf0e10cSrcweir * 1. Redistributions of source code must retain the above copyright 13*cdf0e10cSrcweir * notice, this list of conditions and the following disclaimer. 14*cdf0e10cSrcweir * 2. Redistributions in binary form must reproduce the above copyright 15*cdf0e10cSrcweir * notice, this list of conditions and the following disclaimer in the 16*cdf0e10cSrcweir * documentation and/or other materials provided with the distribution. 17*cdf0e10cSrcweir * 3. Neither the name of Sun Microsystems, Inc. nor the names of its 18*cdf0e10cSrcweir * contributors may be used to endorse or promote products derived 19*cdf0e10cSrcweir * from this software without specific prior written permission. 20*cdf0e10cSrcweir * 21*cdf0e10cSrcweir * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22*cdf0e10cSrcweir * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23*cdf0e10cSrcweir * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24*cdf0e10cSrcweir * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25*cdf0e10cSrcweir * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26*cdf0e10cSrcweir * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 27*cdf0e10cSrcweir * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 28*cdf0e10cSrcweir * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29*cdf0e10cSrcweir * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 30*cdf0e10cSrcweir * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 31*cdf0e10cSrcweir * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32*cdf0e10cSrcweir * 33*cdf0e10cSrcweir *************************************************************************/ 34*cdf0e10cSrcweir 35*cdf0e10cSrcweir #include <stdio.h> 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir #include <sal/main.h> 38*cdf0e10cSrcweir 39*cdf0e10cSrcweir #include <rtl/ustrbuf.hxx> 40*cdf0e10cSrcweir #include <rtl/string.hxx> 41*cdf0e10cSrcweir 42*cdf0e10cSrcweir using rtl::OUString; 43*cdf0e10cSrcweir using rtl::OUStringBuffer; 44*cdf0e10cSrcweir using rtl::OString; 45*cdf0e10cSrcweir 46*cdf0e10cSrcweir SAL_IMPLEMENT_MAIN() 47*cdf0e10cSrcweir { 48*cdf0e10cSrcweir // string concatination 49*cdf0e10cSrcweir 50*cdf0e10cSrcweir sal_Int32 n = 42; 51*cdf0e10cSrcweir double pi = 3.14159; 52*cdf0e10cSrcweir 53*cdf0e10cSrcweir // give it an initial size, should be a good guess. 54*cdf0e10cSrcweir // stringbuffer extends if necessary 55*cdf0e10cSrcweir OUStringBuffer buf( 128 ); 56*cdf0e10cSrcweir 57*cdf0e10cSrcweir // append an ascii string 58*cdf0e10cSrcweir buf.appendAscii( "pi ( here " ); 59*cdf0e10cSrcweir 60*cdf0e10cSrcweir // numbers can be simply appended 61*cdf0e10cSrcweir buf.append( pi ); 62*cdf0e10cSrcweir 63*cdf0e10cSrcweir // lets the compiler count the stringlength, so this is more efficient than 64*cdf0e10cSrcweir // the above appendAscii call, where length of the string must be calculated at 65*cdf0e10cSrcweir // runtime 66*cdf0e10cSrcweir buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(" ) multiplied with " ) ); 67*cdf0e10cSrcweir buf.append( n ); 68*cdf0e10cSrcweir buf.appendAscii( RTL_CONSTASCII_STRINGPARAM(" gives ") ); 69*cdf0e10cSrcweir buf.append( (double)( n * pi ) ); 70*cdf0e10cSrcweir buf.appendAscii( RTL_CONSTASCII_STRINGPARAM( "." ) ); 71*cdf0e10cSrcweir 72*cdf0e10cSrcweir // now transfer the buffer into the string. 73*cdf0e10cSrcweir // afterwards buffer is empty and may be reused again ! 74*cdf0e10cSrcweir OUString string = buf.makeStringAndClear(); 75*cdf0e10cSrcweir 76*cdf0e10cSrcweir // I could of course also used the OStringBuffer directly 77*cdf0e10cSrcweir OString oString = rtl::OUStringToOString( string , RTL_TEXTENCODING_ASCII_US ); 78*cdf0e10cSrcweir 79*cdf0e10cSrcweir // just to print something 80*cdf0e10cSrcweir printf( "%s\n" ,oString.getStr() ); 81*cdf0e10cSrcweir 82*cdf0e10cSrcweir return 0; 83*cdf0e10cSrcweir } 84*cdf0e10cSrcweir 85