src/sstream.cpp

/*
 * Copyright (C) 2010 The Android Open Source Project
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *  * Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#include <sstream>
#include <streambuf>
#include <ios_base.h>

namespace std {

// basic_stringbuf

basic_stringbuf::basic_stringbuf(ios_base::openmode mode) :
    mMode(mode) { }

basic_stringbuf::basic_stringbuf(const string& str, ios_base::openmode mode) :
    mMode(mode), mString(str) { }

basic_stringbuf::~basic_stringbuf() { }

const string& basic_stringbuf::str() const {
    return mString;
}

void basic_stringbuf::str(const string& str) {
    mString = str;
}

streamsize basic_stringbuf::in_avail() {
    if (mMode & std::ios_base::in) {
        return mString.size();
    } else {
        return -1;
    }
}

streamsize basic_stringbuf::xsputn(const char_type* str, streamsize num) {
    mString.append(str, num);
    return num;
}


// stringstream

stringstream::stringstream(std::ios_base::openmode mode)
    : mStringBuf(mode) {
    this->init(&mStringBuf);
}

stringstream::stringstream(const string& str,
                           std::ios_base::openmode mode)
    : mStringBuf(str, mode) {
    this->init(&mStringBuf);
}

stringstream::~stringstream() {}

ostream& stringstream::put(char c) {
    mStringBuf.sputc(c);
    return *this;
}

}  // namespace std