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91 lines
3.3 KiB
C++
91 lines
3.3 KiB
C++
/*****************************************************************
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| AP4 - Strings
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| Copyright 2002 Gilles Boccon-Gibod
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| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
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| Unless you have obtained Bento4 under a difference license,
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| this version of Bento4 is Bento4|GPL.
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| Bento4|GPL is free software; you can redistribute it and/or modify
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| it under the terms of the GNU General Public License as published by
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| the Free Software Foundation; either version 2, or (at your option)
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| any later version.
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| Bento4|GPL is distributed in the hope that it will be useful,
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| but WITHOUT ANY WARRANTY; without even the implied warranty of
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| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| GNU General Public License for more details.
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| You should have received a copy of the GNU General Public License
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| along with Bento4|GPL; see the file COPYING. If not, write to the
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| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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| 02111-1307, USA.
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****************************************************************/
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/*----------------------------------------------------------------------
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| includes
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+---------------------------------------------------------------------*/
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#include "Ap4String.h"
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#include "Ap4Types.h"
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#include "Ap4Utils.h"
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/*----------------------------------------------------------------------
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| AP4_String::EmptyString
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+---------------------------------------------------------------------*/
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char AP4_String::EmptyString = 0;
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/*----------------------------------------------------------------------
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| AP4_String::AP4_String
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+---------------------------------------------------------------------*/
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AP4_String::AP4_String() : m_Chars(&EmptyString), m_Length(0) {}
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/*----------------------------------------------------------------------
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| AP4_String::AP4_String
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+---------------------------------------------------------------------*/
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AP4_String::AP4_String(const char* s) {
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if (s == NULL) {
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m_Chars = &EmptyString;
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m_Length = 0;
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return;
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}
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m_Length = AP4_StringLength(s);
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m_Chars = new char[m_Length+1];
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AP4_CopyMemory(m_Chars, s, m_Length+1);
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}
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/*----------------------------------------------------------------------
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| AP4_String::AP4_String
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+---------------------------------------------------------------------*/
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AP4_String::AP4_String(const AP4_String& s) {
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m_Length = s.m_Length;
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m_Chars = new char[m_Length+1];
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AP4_CopyMemory(m_Chars, s.m_Chars, m_Length+1);
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}
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/*----------------------------------------------------------------------
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| AP4_String::~AP4_String
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+---------------------------------------------------------------------*/
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AP4_String::~AP4_String()
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{
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if (m_Chars != &EmptyString) delete[] m_Chars;
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}
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/*----------------------------------------------------------------------
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| AP4_String::operator=
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+---------------------------------------------------------------------*/
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const AP4_String&
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AP4_String::operator=(const AP4_String& s)
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{
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if (&s == this) return s;
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if (m_Chars != &EmptyString) delete[] m_Chars;
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m_Length = s.m_Length;
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m_Chars = new char[m_Length+1];
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AP4_CopyMemory(m_Chars, s.m_Chars, m_Length+1);
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return *this;
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}
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