Teuchos_StringInputStream.cpp

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00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 //                    Teuchos: Common Tools Package
00005 //                 Copyright (2004) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #include "Teuchos_StringInputStream.hpp"
00030 
00031 using namespace Teuchos;
00032 
00033 
00034 unsigned int StringInputStream::readBytes(unsigned char* const toFill, 
00035                                           const unsigned int maxToRead)
00036 {
00037   if (pos_ == text_.length()) return 0;
00038   
00039   int toRead = text_.length() - pos_;
00040   if ((int) maxToRead < toRead) toRead = maxToRead;
00041 
00042   std::strncpy((char*) toFill, text_.c_str()+pos_, toRead);
00043 
00044   pos_ += toRead;
00045   
00046   return (size_t) toRead;
00047 }
00048 
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