0024512: clang++ compiler complains about extra semicolon
[occt.git] / src / LDOM / LDOM_OSStream.hxx
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b311480e 1// Created on: 2001-10-01
2// Created by: Julia DOROVSKIKH
973c2be1 3// Copyright (c) 2001-2014 OPEN CASCADE SAS
b311480e 4//
973c2be1 5// This file is part of Open CASCADE Technology software library.
b311480e 6//
973c2be1 7// This library is free software; you can redistribute it and / or modify it
8// under the terms of the GNU Lesser General Public version 2.1 as published
9// by the Free Software Foundation, with special exception defined in the file
10// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
11// distribution for complete text of the license and disclaimer of any warranty.
b311480e 12//
973c2be1 13// Alternatively, this file may be used under the terms of Open CASCADE
14// commercial license or contractual agreement.
7fd59977 15
16#ifndef LDOM_OSStream_HeaderFile
17#define LDOM_OSStream_HeaderFile
18
19// This implementation allows to increase performance
20// of outputting data into a string
21// avoiding reallocation of buffer.
7fd59977 22// class LDOM_OSStream implements output into a sequence of
23// strings and getting the result as a string.
24// It inherits Standard_OStream (ostream).
25// Beside methods of ostream, it also has additional
26// useful methods: str(), Length() and Clear().
7fd59977 27// struct LDOM_StringElem is one element of internal sequence
7fd59977 28// class LDOM_SBuffer inherits streambuf and
29// redefines some virtual methods of it
30// (overflow() and xsputn())
31// This class contains pointers on first
32// and current element of sequence,
33// also it has methods for the sequence management.
34
35#include <Standard_OStream.hxx>
36#include <Standard_Boolean.hxx>
37
38#include <stdlib.h>
39#include <stdio.h> /* EOF */
40
41class LDOM_StringElem; // defined in cxx file
42
43class LDOM_SBuffer : public streambuf
44{
45 public:
46 Standard_EXPORT LDOM_SBuffer (const Standard_Integer theMaxBuf);
47 // Constructor. Sets a default value for the
48 // length of each sequence element.
49
50 Standard_EXPORT Standard_CString str () const;
51 // Concatenates strings of all sequence elements
52 // into one string. Space for output string is allocated
53 // with operator new.
54 // Caller of this function is responsible
55 // for memory release after the string usage.
56
5640d653 57 Standard_Integer Length () const {return myLength;}
7fd59977 58 // Returns full length of data contained
59
60 Standard_EXPORT void Clear ();
61 // Clears first element of sequence and removes all others
62
63 // Methods of streambuf
64
65 Standard_EXPORT virtual int overflow(int c = EOF);
66 Standard_EXPORT virtual int underflow();
67 //virtual int uflow();
68
69 Standard_EXPORT virtual int xsputn(const char* s, int n);
70 //virtual int xsgetn(char* s, int n);
71 //virtual int sync();
72
73 Standard_EXPORT ~LDOM_SBuffer ();
74 // Destructor
75
76 private:
77 Standard_Integer myMaxBuf; // default length of one element
78 Standard_Integer myLength; // full length of contained data
79 LDOM_StringElem* myFirstString; // the head of the sequence
80 LDOM_StringElem* myCurString; // current element of the sequence
81};
82
83class LDOM_OSStream : public Standard_OStream
84{
85 public:
86 Standard_EXPORT LDOM_OSStream (const Standard_Integer theMaxBuf);
87 // Constructor
88
5640d653 89 Standard_CString str () const {return myBuffer.str();}
7fd59977 90
5640d653 91 Standard_Integer Length () const {return myBuffer.Length();}
7fd59977 92
5640d653 93 void Clear () { myBuffer.Clear(); }
7fd59977 94
95 private:
96 LDOM_SBuffer myBuffer;
97};
98
99#endif