--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/genericopenlibs/cppstdlib/stl/stlport/stl/_sstream.h Fri Jun 04 16:20:51 2010 +0100
@@ -0,0 +1,582 @@
+/*
+ * Copyright (c) 1999
+ * Silicon Graphics Computer Systems, Inc.
+ *
+ * Copyright (c) 1999
+ * Boris Fomitchev
+ *
+ * This material is provided "as is", with absolutely no warranty expressed
+ * or implied. Any use is at your own risk.
+ *
+ * Permission to use or copy this software for any purpose is hereby granted
+ * without fee, provided the above notices are retained on all copies.
+ * Permission to modify the code and to distribute modified code is granted,
+ * provided the above notices are retained, and a notice that the code was
+ * modified is included with the above copyright notice.
+ *
+ */
+
+
+// This header defines classes basic_stringbuf, basic_istringstream,
+// basic_ostringstream, and basic_stringstream. These classes
+// represent streamsbufs and streams whose sources or destinations are
+// C++ strings.
+
+#ifndef _STLP_INTERNAL_SSTREAM
+#define _STLP_INTERNAL_SSTREAM
+
+#ifndef _STLP_INTERNAL_STREAMBUF
+# include <stl/_streambuf.h>
+#endif
+
+#ifndef _STLP_INTERNAL_ISTREAM
+# include <stl/_istream.h> // Includes <ostream>, <ios>, <iosfwd>
+#endif
+
+#ifndef _STLP_INTERNAL_STRING_H
+# include <stl/_string.h>
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+//----------------------------------------------------------------------
+// This version of basic_stringbuf relies on the internal details of
+// basic_string. It relies on the fact that, in this implementation,
+// basic_string's iterators are pointers. It also assumes (as allowed
+// by the standard) that _CharT is a POD type.
+
+// We have a very small buffer for the put area, just so that we don't
+// have to use append() for every sputc. Conceptually, the buffer
+// immediately follows the end of the underlying string. We use this
+// buffer when appending to write-only streambufs, but we don't use it
+// for read-write streambufs.
+
+template <class _CharT, class _Traits, class _Alloc>
+class basic_stringbuf : public basic_streambuf<_CharT, _Traits> {
+public: // Typedefs.
+ typedef _CharT char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_streambuf<_CharT, _Traits> _Base;
+ typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Self;
+ typedef basic_string<_CharT, _Traits, _Alloc> _String;
+
+public: // Constructors, destructor.
+ explicit basic_stringbuf(ios_base::openmode __mode
+ = ios_base::in | ios_base::out);
+ explicit basic_stringbuf(const _String& __s, ios_base::openmode __mode
+ = ios_base::in | ios_base::out);
+ virtual ~basic_stringbuf(){}
+
+public: // Get or set the string.
+ _String str() const { _M_append_buffer(); return _M_str; }
+ void str(const _String& __s);
+
+protected: // Overridden virtual member functions.
+
+ // Precondition: gptr() >= egptr(). Returns a character, if one is available.
+ virtual int_type underflow() {
+ return this->gptr() != this->egptr()
+ ? _Traits::to_int_type(*this->gptr())
+ : _Traits::eof();
+ }
+
+ virtual int_type uflow() {
+ if (this->gptr() != this->egptr()) {
+ int_type __c = _Traits::to_int_type(*this->gptr());
+ this->gbump(1);
+ return __c;
+ }
+ else
+ return _Traits::eof();
+ }
+
+ virtual int_type pbackfail(int_type __c) {
+ if (this->gptr() != this->eback()) {
+ if (!_Traits::eq_int_type(__c, _Traits::eof())) {
+ if (_Traits::eq(_Traits::to_char_type(__c), this->gptr()[-1])) {
+ this->gbump(-1);
+ return __c;
+ }
+ else if (_M_mode & ios_base::out) {
+ this->gbump(-1);
+ *this->gptr() = _Traits::to_char_type(__c);
+ return __c;
+ }
+ else
+ return _Traits::eof();
+ }
+ else {
+ this->gbump(-1);
+ return _Traits::not_eof(__c);
+ }
+ }
+ else
+ return _Traits::eof();
+ }
+
+ virtual int_type overflow(int_type __c) {
+ // fbp : reverse order of "ifs" to pass Dietmar's test.
+ // Apparently, standard allows overflow with eof even for read-only streams.
+ if (!_Traits::eq_int_type(__c, _Traits::eof())) {
+ if (_M_mode & ios_base::out) {
+ if (!(_M_mode & ios_base::in)) {
+ // It's a write-only streambuf, so we can use special append buffer.
+ if (this->pptr() == this->epptr())
+ this->_M_append_buffer();
+
+ if (this->pptr() != this->epptr()) {
+ *this->pptr() = _Traits::to_char_type(__c);
+ this->pbump(1);
+ return __c;
+ }
+ else
+ return _Traits::eof();
+ }
+ else {
+ // We're not using a special append buffer, just the string itself.
+ if (this->pptr() == this->epptr()) {
+ ptrdiff_t __offset = this->gptr() - this->eback();
+ _M_str.push_back(_Traits::to_char_type(__c));
+
+ _CharT* __data_ptr = __CONST_CAST(_CharT*,_M_str.data());
+ size_t __data_size = _M_str.size();
+
+ this->setg(__data_ptr, __data_ptr + __offset, __data_ptr+__data_size);
+ this->setp(__data_ptr, __data_ptr + __data_size);
+ this->pbump((int)__data_size);
+ return __c;
+ }
+ else {
+ *this->pptr() = _Traits::to_char_type(__c);
+ this->pbump(1);
+ return __c;
+ }
+ }
+ }
+ else // Overflow always fails if it's read-only
+ return _Traits::eof();
+ }
+ else // __c is EOF, so we don't have to do anything
+ return _Traits::not_eof(__c);
+ }
+
+ int_type pbackfail() {return pbackfail(_Traits::eof());}
+ int_type overflow() {return overflow(_Traits::eof());}
+
+
+ virtual streamsize xsputn(const char_type* __s, streamsize __n) {
+ streamsize __nwritten = 0;
+
+ if ((_M_mode & ios_base::out) && __n > 0) {
+ // If the put pointer is somewhere in the middle of the string,
+ // then overwrite instead of append.
+ if (this->pbase() == _M_str.data() ) {
+ ptrdiff_t __avail = _M_str.data() + _M_str.size() - this->pptr();
+ if (__avail > __n) {
+ _Traits::copy(this->pptr(), __s, __STATIC_CAST(size_t, __n));
+ this->pbump((int)__n);
+ return __n;
+ }
+ else {
+ _Traits::copy(this->pptr(), __s, __avail);
+ __nwritten += __avail;
+ __n -= __avail;
+ __s += __avail;
+ this->setp(_M_Buf, _M_Buf + __STATIC_CAST(int,_S_BufSiz));
+ }
+ }
+
+ // At this point we know we're appending.
+ if (_M_mode & ios_base::in) {
+ ptrdiff_t __get_offset = this->gptr() - this->eback();
+ _M_str.append(__s, __s + __STATIC_CAST(ptrdiff_t, __n));
+
+ _CharT* __data_ptr = __CONST_CAST(_CharT*, _M_str.data());
+ size_t __data_size = _M_str.size();
+
+ this->setg(__data_ptr, __data_ptr + __get_offset, __data_ptr + __data_size);
+ this->setp(__data_ptr, __data_ptr + __data_size);
+ this->pbump((int)__data_size);
+ }
+ else {
+ _M_append_buffer();
+ _M_str.append(__s, __s + __STATIC_CAST(ptrdiff_t, __n));
+ }
+
+ __nwritten += __n;
+ }
+
+ return __nwritten;
+ }
+
+ virtual streamsize _M_xsputnc(char_type __c, streamsize __n) {
+ streamsize __nwritten = 0;
+
+ if ((_M_mode & ios_base::out) && __n > 0) {
+ // If the put pointer is somewhere in the middle of the string,
+ // then overwrite instead of append.
+ if (this->pbase() == _M_str.data()) {
+ ptrdiff_t __avail = _M_str.data() + _M_str.size() - this->pptr();
+ if (__avail > __n) {
+ _Traits::assign(this->pptr(), __STATIC_CAST(size_t, __n), __c);
+ this->pbump(__STATIC_CAST(int, __n));
+ return __n;
+ }
+ else {
+ _Traits::assign(this->pptr(), __avail, __c);
+ __nwritten += __avail;
+ __n -= __avail;
+ this->setp(_M_Buf, _M_Buf + __STATIC_CAST(int,_S_BufSiz));
+ }
+ }
+
+
+ // At this point we know we're appending.
+ size_t __app_size = sizeof(streamsize) > sizeof(size_t) ? __STATIC_CAST(size_t, (min)(__n, __STATIC_CAST(streamsize, _M_str.max_size())))
+ : __STATIC_CAST(size_t, __n);
+ if (this->_M_mode & ios_base::in) {
+ ptrdiff_t __get_offset = this->gptr() - this->eback();
+ _M_str.append(__app_size, __c);
+
+ _CharT* __data_ptr = __CONST_CAST(_CharT*,_M_str.data());
+ size_t __data_size = _M_str.size();
+
+ this->setg(__data_ptr, __data_ptr + __get_offset, __data_ptr + __data_size);
+ this->setp(__data_ptr, __data_ptr + __data_size);
+ this->pbump((int)__data_size);
+ }
+ else {
+ _M_append_buffer();
+ _M_str.append(__app_size, __c);
+ }
+
+ __nwritten += __app_size;
+ }
+
+ return __nwritten;
+ }
+
+ virtual _Base* setbuf(_CharT*, streamsize __n) {
+ if (__n > 0) {
+ bool __do_get_area = false;
+ bool __do_put_area = false;
+ ptrdiff_t __offg = 0;
+ ptrdiff_t __offp = 0;
+
+ if (this->pbase() == _M_str.data()) {
+ __do_put_area = true;
+ __offp = this->pptr() - this->pbase();
+ }
+
+ if (this->eback() == _M_str.data()) {
+ __do_get_area = true;
+ __offg = this->gptr() - this->eback();
+ }
+
+ if ((_M_mode & ios_base::out) && !(_M_mode & ios_base::in))
+ _M_append_buffer();
+
+ _M_str.reserve(sizeof(streamsize) > sizeof(size_t) ? __STATIC_CAST(size_t, (min)(__n, __STATIC_CAST(streamsize, _M_str.max_size())))
+ : __STATIC_CAST(size_t, __n));
+
+ _CharT* __data_ptr = __CONST_CAST(_CharT*, _M_str.data());
+ size_t __data_size = _M_str.size();
+
+ if (__do_get_area) {
+ this->setg(__data_ptr, __data_ptr + __offg, __data_ptr + __data_size);
+ }
+
+ if (__do_put_area) {
+ this->setp(__data_ptr, __data_ptr + __data_size);
+ this->pbump((int)__offp);
+ }
+ }
+
+ return this;
+ }
+ virtual pos_type seekoff(off_type __off, ios_base::seekdir __dir,
+ ios_base::openmode __mode
+ = ios_base::in | ios_base::out) {
+ __mode &= _M_mode;
+
+ bool __imode = (__mode & ios_base::in) != 0;
+ bool __omode = (__mode & ios_base::out) != 0;
+
+ if ( !(__imode || __omode) )
+ return pos_type(off_type(-1));
+
+ if ( (__imode && (this->gptr() == 0)) || (__omode && (this->pptr() == 0)) )
+ return pos_type(off_type(-1));
+
+ #ifndef SYMBIAN_OE_ENHANCED_LOCALE_SUPPORT
+ if ((_M_mode & ios_base::out) && !(_M_mode & ios_base::in))
+ _M_append_buffer();
+ #endif
+
+ streamoff __newoff;
+ switch(__dir) {
+ case ios_base::beg:
+ __newoff = 0;
+ break;
+ case ios_base::end:
+ __newoff = _M_str.size();
+ break;
+ case ios_base::cur:
+ __newoff = __imode ? this->gptr() - this->eback() : this->pptr() - this->pbase();
+ #ifdef SYMBIAN_OE_ENHANCED_LOCALE_SUPPORT
+ if ( __off == 0 ) {
+ return pos_type(__newoff);
+ }
+ #endif
+ break;
+ default:
+ return pos_type(off_type(-1));
+ }
+
+ __off += __newoff;
+ #ifdef SYMBIAN_OE_ENHANCED_LOCALE_SUPPORT
+ _CharT* __data_ptr = __CONST_CAST(_CharT*, _M_str.data());
+ size_t __data_size = _M_str.size();
+ #endif
+
+ if (__imode) {
+ ptrdiff_t __n = this->egptr() - this->eback();
+
+ if (__off < 0 || __off > __n)
+ return pos_type(off_type(-1));
+ this->setg(this->eback(), this->eback() + __STATIC_CAST(ptrdiff_t, __off),
+ this->eback() + __STATIC_CAST(ptrdiff_t, __n));
+ }
+
+ if (__omode) {
+ ptrdiff_t __n = this->epptr() - this->pbase();
+
+ if (__off < 0 || __off > __n)
+ return pos_type(off_type(-1));
+ #ifdef SYMBIAN_OE_ENHANCED_LOCALE_SUPPORT
+ this->setp(__data_ptr, __data_ptr+__data_size);
+ #else
+ this->setp(this->pbase(), this->pbase() + __n);
+ #endif
+ this->pbump((int)__off);
+ }
+
+ return pos_type(__off);
+ }
+
+ virtual pos_type seekpos(pos_type __pos, ios_base::openmode __mode
+ = ios_base::in | ios_base::out) {
+ __mode &= _M_mode;
+
+ bool __imode = (__mode & ios_base::in) != 0;
+ bool __omode = (__mode & ios_base::out) != 0;
+
+ if ( !(__imode || __omode) )
+ return pos_type(off_type(-1));
+
+ if ( (__imode && (this->gptr() == 0)) || (__omode && (this->pptr() == 0)) )
+ return pos_type(off_type(-1));
+
+ const off_type __n = __pos - pos_type(off_type(0));
+ if ((_M_mode & ios_base::out) && !(_M_mode & ios_base::in))
+ _M_append_buffer();
+
+ if (__imode) {
+ if (__n < 0 || __n > this->egptr() - this->eback())
+ return pos_type(off_type(-1));
+ this->setg(this->eback(), this->eback() + __STATIC_CAST(ptrdiff_t, __n), this->egptr());
+ }
+
+ if (__omode) {
+ if (__n < 0 || size_t(__n) > _M_str.size())
+ return pos_type(off_type(-1));
+
+ _CharT* __data_ptr = __CONST_CAST(_CharT*,_M_str.data());
+ size_t __data_size = _M_str.size();
+
+ this->setp(__data_ptr, __data_ptr+__data_size);
+ this->pbump((int)__n);
+ }
+
+ return __pos;
+ }
+
+
+private: // Helper functions.
+ // Append the internal buffer to the string if necessary.
+ void _M_append_buffer() const;
+ void _M_set_ptrs();
+
+private:
+ ios_base::openmode _M_mode;
+ mutable basic_string<_CharT, _Traits, _Alloc> _M_str;
+
+ enum _JustName { _S_BufSiz = 8 };
+ _CharT _M_Buf[ 8 /* _S_BufSiz */];
+};
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+_STLP_EXPORT_TEMPLATE_CLASS basic_stringbuf<char, char_traits<char>, allocator<char> >;
+# if !defined (_STLP_NO_WCHAR_T)
+_STLP_EXPORT_TEMPLATE_CLASS basic_stringbuf<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
+# endif
+#endif /* _STLP_USE_TEMPLATE_EXPORT */
+
+//----------------------------------------------------------------------
+// Class basic_istringstream, an input stream that uses a stringbuf.
+
+template <class _CharT, class _Traits, class _Alloc>
+class basic_istringstream : public basic_istream<_CharT, _Traits> {
+public: // Typedefs
+ typedef typename _Traits::char_type char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_ios<_CharT, _Traits> _Basic_ios;
+ typedef basic_istream<_CharT, _Traits> _Base;
+ typedef basic_string<_CharT, _Traits, _Alloc> _String;
+ typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Buf;
+
+public: // Constructors, destructor.
+ basic_istringstream(ios_base::openmode __mode = ios_base::in);
+ basic_istringstream(const _String& __str,
+ ios_base::openmode __mode = ios_base::in);
+ ~basic_istringstream(){}
+
+public: // Member functions
+
+ basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
+ { return __CONST_CAST(_Buf*,&_M_buf); }
+
+ _String str() const { return _M_buf.str(); }
+ void str(const _String& __s) { _M_buf.str(__s); }
+
+private:
+ basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
+
+#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
+ typedef basic_istringstream<_CharT, _Traits> _Self;
+ //explicitely defined as private to avoid warnings:
+ basic_istringstream(_Self const&);
+ _Self& operator = (_Self const&);
+#endif
+};
+
+
+//----------------------------------------------------------------------
+// Class basic_ostringstream, an output stream that uses a stringbuf.
+
+template <class _CharT, class _Traits, class _Alloc>
+class basic_ostringstream : public basic_ostream<_CharT, _Traits> {
+public: // Typedefs
+ typedef typename _Traits::char_type char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_ios<_CharT, _Traits> _Basic_ios;
+ typedef basic_ostream<_CharT, _Traits> _Base;
+ typedef basic_string<_CharT, _Traits, _Alloc> _String;
+ typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Buf;
+
+public: // Constructors, destructor.
+ basic_ostringstream(ios_base::openmode __mode = ios_base::out);
+ basic_ostringstream(const _String& __str,
+ ios_base::openmode __mode = ios_base::out);
+ ~basic_ostringstream(){}
+
+public: // Member functions.
+
+ basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
+ { return __CONST_CAST(_Buf*,&_M_buf); }
+
+ _String str() const { return _M_buf.str(); }
+ void str(const _String& __s) { _M_buf.str(__s); } // dwa 02/07/00 - BUG STOMPER DAVE
+
+
+private:
+ basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
+
+#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
+ typedef basic_ostringstream<_CharT, _Traits> _Self;
+ //explicitely defined as private to avoid warnings:
+ basic_ostringstream(_Self const&);
+ _Self& operator = (_Self const&);
+#endif
+};
+
+
+//----------------------------------------------------------------------
+// Class basic_stringstream, a bidirectional stream that uses a stringbuf.
+
+template <class _CharT, class _Traits, class _Alloc>
+class basic_stringstream : public basic_iostream<_CharT, _Traits> {
+public: // Typedefs
+ typedef typename _Traits::char_type char_type;
+ typedef typename _Traits::int_type int_type;
+ typedef typename _Traits::pos_type pos_type;
+ typedef typename _Traits::off_type off_type;
+ typedef _Traits traits_type;
+
+ typedef basic_ios<_CharT, _Traits> _Basic_ios;
+ typedef basic_iostream<_CharT, _Traits> _Base;
+ typedef basic_string<_CharT, _Traits, _Alloc> _String;
+ typedef basic_stringbuf<_CharT, _Traits, _Alloc> _Buf;
+
+ typedef ios_base::openmode openmode;
+
+public: // Constructors, destructor.
+ basic_stringstream(openmode __mod = ios_base::in | ios_base::out);
+ basic_stringstream(const _String& __str,
+ openmode __mod = ios_base::in | ios_base::out);
+ ~basic_stringstream(){}
+
+public: // Member functions.
+
+ basic_stringbuf<_CharT, _Traits, _Alloc>* rdbuf() const
+ { return __CONST_CAST(_Buf*,&_M_buf); }
+
+ _String str() const { return _M_buf.str(); }
+ void str(const _String& __s) { _M_buf.str(__s); }
+
+private:
+ basic_stringbuf<_CharT, _Traits, _Alloc> _M_buf;
+
+#if defined (_STLP_MSVC) && (_STLP_MSVC >= 1300 && _STLP_MSVC <= 1310)
+ typedef basic_stringstream<_CharT, _Traits> _Self;
+ //explicitely defined as private to avoid warnings:
+ basic_stringstream(_Self const&);
+ _Self& operator = (_Self const&);
+#endif
+};
+
+
+#if defined (_STLP_USE_TEMPLATE_EXPORT)
+_STLP_EXPORT_TEMPLATE_CLASS basic_istringstream<char, char_traits<char>, allocator<char> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_ostringstream<char, char_traits<char>, allocator<char> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_stringstream<char, char_traits<char>, allocator<char> >;
+# if !defined (_STLP_NO_WCHAR_T)
+_STLP_EXPORT_TEMPLATE_CLASS basic_istringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_ostringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
+_STLP_EXPORT_TEMPLATE_CLASS basic_stringstream<wchar_t, char_traits<wchar_t>, allocator<wchar_t> >;
+# endif
+#endif /* _STLP_USE_TEMPLATE_EXPORT */
+
+_STLP_END_NAMESPACE
+
+#if defined (_STLP_EXPOSE_STREAM_IMPLEMENTATION) && !defined (_STLP_LINK_TIME_INSTANTIATION)
+# include <stl/_sstream.c>
+#endif
+
+#endif /* _STLP_INTERNAL_SSTREAM */
+
+// Local Variables:
+// mode:C++
+// End: