--- /dev/null
+/*
+ * 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.
+ *
+ */
+
+#ifndef _STLP_SSTREAM_C
+#define _STLP_SSTREAM_C
+
+#ifndef _STLP_INTERNAL_SSTREAM
+# include <stl/_sstream.h>
+#endif
+
+#if defined ( _STLP_NESTED_TYPE_PARAM_BUG )
+// no wint_t is supported for this mode
+# define __BSB_int_type__ int
+# define __BSB_pos_type__ streampos
+#else
+# define __BSB_int_type__ _STLP_TYPENAME_ON_RETURN_TYPE basic_stringbuf<_CharT, _Traits, _Alloc>::int_type
+# define __BSB_pos_type__ _STLP_TYPENAME_ON_RETURN_TYPE basic_stringbuf<_CharT, _Traits, _Alloc>::pos_type
+#endif
+
+_STLP_BEGIN_NAMESPACE
+
+//----------------------------------------------------------------------
+// Non-inline stringbuf member functions.
+
+// Constructors. Note that the base class constructor sets all of the
+// get and area pointers to null.
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_stringbuf<_CharT, _Traits, _Alloc>
+ ::basic_stringbuf(ios_base::openmode __mode)
+ : basic_streambuf<_CharT, _Traits>(), _M_mode(__mode), _M_str()
+{}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_stringbuf<_CharT, _Traits, _Alloc>
+ ::basic_stringbuf(const basic_string<_CharT, _Traits, _Alloc>& __s, ios_base::openmode __mode)
+ : basic_streambuf<_CharT, _Traits>(), _M_mode(__mode), _M_str(__s)
+{
+ _M_set_ptrs();
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_stringbuf<_CharT, _Traits, _Alloc>::~basic_stringbuf()
+{}
+
+// Set the underlying string to a new value.
+template <class _CharT, class _Traits, class _Alloc>
+void
+basic_stringbuf<_CharT, _Traits, _Alloc>::str(const basic_string<_CharT, _Traits, _Alloc>& __s)
+{
+ _M_str = __s;
+ _M_set_ptrs();
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+void
+basic_stringbuf<_CharT, _Traits, _Alloc>::_M_set_ptrs() {
+ _CharT* __data_ptr = __CONST_CAST(_CharT*,_M_str.data());
+ _CharT* __data_end = __data_ptr + _M_str.size();
+ // The initial read position is the beginning of the string.
+ if (_M_mode & ios_base::in) {
+ if (_M_mode & ios_base::ate)
+ this->setg(__data_ptr, __data_end, __data_end);
+ else
+ this->setg(__data_ptr, __data_ptr, __data_end);
+ }
+
+ // The initial write position is the beginning of the string.
+ if (_M_mode & ios_base::out) {
+ if (_M_mode & (ios_base::app | ios_base::ate))
+ this->setp(__data_end, __data_end);
+ else
+ this->setp(__data_ptr, __data_end);
+ }
+}
+
+// Precondition: gptr() >= egptr(). Returns a character, if one is available.
+template <class _CharT, class _Traits, class _Alloc>
+__BSB_int_type__
+basic_stringbuf<_CharT, _Traits, _Alloc>::underflow() {
+ return this->gptr() != this->egptr()
+ ? _Traits::to_int_type(*this->gptr())
+ : _Traits::eof();
+}
+
+// Precondition: gptr() >= egptr().
+template <class _CharT, class _Traits, class _Alloc>
+__BSB_int_type__
+basic_stringbuf<_CharT, _Traits, _Alloc>::uflow() {
+ if (this->gptr() != this->egptr()) {
+ int_type __c = _Traits::to_int_type(*this->gptr());
+ this->gbump(1);
+ return __c;
+ }
+ else
+ return _Traits::eof();
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+__BSB_int_type__
+basic_stringbuf<_CharT, _Traits, _Alloc>::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();
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+__BSB_int_type__
+basic_stringbuf<_CharT, _Traits, _Alloc>::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);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+streamsize
+basic_stringbuf<_CharT, _Traits, _Alloc>::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;
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+streamsize
+basic_stringbuf<_CharT, _Traits, _Alloc>::_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;
+}
+
+// According to the C++ standard the effects of setbuf are implementation
+// defined, except that setbuf(0, 0) has no effect. In this implementation,
+// setbuf(<anything>, n), for n > 0, calls reserve(n) on the underlying
+// string.
+template <class _CharT, class _Traits, class _Alloc>
+basic_streambuf<_CharT, _Traits>*
+basic_stringbuf<_CharT, _Traits, _Alloc>::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;
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+__BSB_pos_type__
+basic_stringbuf<_CharT, _Traits, _Alloc>
+ ::seekoff(off_type __off,
+ ios_base::seekdir __dir,
+ ios_base::openmode __mode) {
+ __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));
+
+ if ((_M_mode & ios_base::out) && !(_M_mode & ios_base::in))
+ _M_append_buffer();
+
+ 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();
+ break;
+ default:
+ return pos_type(off_type(-1));
+ }
+
+ __off += __newoff;
+
+ 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));
+ this->setp(this->pbase(), this->pbase() + __n);
+ this->pbump((int)__off);
+ }
+
+ return pos_type(__off);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+__BSB_pos_type__
+basic_stringbuf<_CharT, _Traits, _Alloc>
+ ::seekpos(pos_type __pos, ios_base::openmode __mode) {
+ __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;
+}
+
+// This is declared as a const member function because it is
+// called by basic_stringbuf<>::str(). Precondition: this is a
+// write-only stringbuf. We can't use an output buffer for read-
+// write stringbufs. Postcondition: pptr is reset to the beginning
+// of the buffer.
+template <class _CharT, class _Traits, class _Alloc>
+void basic_stringbuf<_CharT, _Traits, _Alloc>::_M_append_buffer() const {
+ // Do we have a buffer to append?
+ if (this->pbase() == this->_M_Buf && this->pptr() != this->_M_Buf) {
+ basic_stringbuf<_CharT, _Traits, _Alloc>* __this = __CONST_CAST(_Self*,this);
+ __this->_M_str.append((const _CharT*)this->pbase(), (const _CharT*)this->pptr());
+#ifndef __MWERKS__
+ __this->setp(__CONST_CAST(_CharT*,_M_Buf),
+ __CONST_CAST(_CharT*,_M_Buf + __STATIC_CAST(int,_S_BufSiz)));
+#else // CodeWarrior treat const char * and const char [8] as different types
+ __this->setp((_CharT*)_M_Buf,
+ (_CharT*)(_M_Buf + __STATIC_CAST(int,_S_BufSiz)));
+#endif
+ }
+
+ // Have we run off the end of the string?
+ else if (this->pptr() == this->epptr()) {
+ basic_stringbuf<_CharT, _Traits, _Alloc>* __this = __CONST_CAST(_Self*,this);
+#ifndef __MWERKS__
+ __this->setp(__CONST_CAST(_CharT*,_M_Buf),
+ __CONST_CAST(_CharT*,_M_Buf + __STATIC_CAST(int,_S_BufSiz)));
+#else // CodeWarrior treat const char * and const char [8] as different types
+ __this->setp((_CharT*)_M_Buf,
+ (_CharT*)(_M_Buf + __STATIC_CAST(int,_S_BufSiz)));
+#endif
+ }
+}
+
+//----------------------------------------------------------------------
+// Non-inline istringstream member functions.
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_istringstream<_CharT, _Traits, _Alloc>
+ ::basic_istringstream(ios_base::openmode __mode)
+ : basic_istream<_CharT, _Traits>(0),
+ _M_buf(__mode | ios_base::in) {
+ this->init(&_M_buf);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_istringstream<_CharT, _Traits, _Alloc>
+ ::basic_istringstream(const _String& __str,ios_base::openmode __mode)
+ : basic_istream<_CharT, _Traits>(0),
+ _M_buf(__str, __mode | ios_base::in) {
+ this->init(&_M_buf);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_istringstream<_CharT, _Traits, _Alloc>::~basic_istringstream()
+{}
+
+//----------------------------------------------------------------------
+// Non-inline ostringstream member functions.
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_ostringstream<_CharT, _Traits, _Alloc>
+ ::basic_ostringstream(ios_base::openmode __mode)
+ : basic_ostream<_CharT, _Traits>(0),
+ _M_buf(__mode | ios_base::out) {
+ this->init(&_M_buf);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_ostringstream<_CharT, _Traits, _Alloc>
+ ::basic_ostringstream(const _String& __str, ios_base::openmode __mode)
+ : basic_ostream<_CharT, _Traits>(0),
+ _M_buf(__str, __mode | ios_base::out) {
+ this->init(&_M_buf);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_ostringstream<_CharT, _Traits, _Alloc>::~basic_ostringstream()
+{}
+
+//----------------------------------------------------------------------
+// Non-inline stringstream member functions.
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_stringstream<_CharT, _Traits, _Alloc>
+ ::basic_stringstream(ios_base::openmode __mode)
+ : basic_iostream<_CharT, _Traits>(0), _M_buf(__mode) {
+ this->init(&_M_buf);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_stringstream<_CharT, _Traits, _Alloc>
+ ::basic_stringstream(const _String& __str, ios_base::openmode __mode)
+ : basic_iostream<_CharT, _Traits>(0), _M_buf(__str, __mode) {
+ this->init(&_M_buf);
+}
+
+template <class _CharT, class _Traits, class _Alloc>
+basic_stringstream<_CharT, _Traits, _Alloc>::~basic_stringstream()
+{}
+
+_STLP_END_NAMESPACE
+
+# undef __BSB_int_type__
+# undef __BSB_pos_type__
+
+#endif /* _STLP_SSTREAM_C */
+
+// Local Variables:
+// mode:C++
+// End:
projects / polintos / scott / priv.git / blobdiff