Moved all files one dir upwards (should've done that long ago)

project/jni/stlport/src/strstream.cpp

@@ -0,0 +1,390 @@
+/*
+ * 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.
+ *
+ */
+
+// Implementation of the classes in header <strstream>.
+// WARNING: The classes defined in <strstream> are DEPRECATED.  This
+// header is defined in section D.7.1 of the C++ standard, and it
+// MAY BE REMOVED in a future standard revision.  You should use the
+// header <sstream> instead.
+
+#include "stlport_prefix.h"
+
+#include <strstream>
+#include <algorithm>
+#include <limits>
+
+_STLP_BEGIN_NAMESPACE
+
+// strstreambuf constructor, destructor.
+strstreambuf::strstreambuf(streamsize initial_capacity)
+   : _M_alloc_fun(0), _M_free_fun(0),
+     _M_dynamic(true), _M_frozen(false), _M_constant(false) {
+  size_t n = (sizeof(streamsize) > sizeof(size_t)) ? __STATIC_CAST(size_t, (min)(__STATIC_CAST(streamsize, (numeric_limits<size_t>::max)()),
+                                                                                 (max)(initial_capacity, streamsize(16))))
+                                                   : __STATIC_CAST(size_t, (max)(initial_capacity, streamsize(16)));
+
+  char* buf = _M_alloc(n);
+  if (buf) {
+    setp(buf, buf + n);
+    setg(buf, buf, buf);
+  }
+}
+
+strstreambuf::strstreambuf(__alloc_fn alloc_f, __free_fn free_f)
+  : _M_alloc_fun(alloc_f), _M_free_fun(free_f),
+    _M_dynamic(true), _M_frozen(false), _M_constant(false) {
+  size_t n = 16;
+
+  char* buf = _M_alloc(n);
+  if (buf) {
+    setp(buf, buf + n);
+    setg(buf, buf, buf);
+  }
+}
+
+strstreambuf::strstreambuf(char* get, streamsize n, char* put)
+  : _M_alloc_fun(0), _M_free_fun(0),
+    _M_dynamic(false), _M_frozen(false), _M_constant(false) {
+  _M_setup(get, put, n);
+}
+
+strstreambuf::strstreambuf(signed char* get, streamsize n, signed char* put)
+  : _M_alloc_fun(0), _M_free_fun(0),
+    _M_dynamic(false), _M_frozen(false), _M_constant(false) {
+  _M_setup(__REINTERPRET_CAST(char*,get), __REINTERPRET_CAST(char*,put), n);
+}
+
+strstreambuf::strstreambuf(unsigned char* get, streamsize n,
+                           unsigned char* put)
+  : _M_alloc_fun(0), _M_free_fun(0),
+    _M_dynamic(false), _M_frozen(false), _M_constant(false) {
+  _M_setup(__REINTERPRET_CAST(char*,get), __REINTERPRET_CAST(char*,put), n);
+}
+
+strstreambuf::strstreambuf(const char* get, streamsize n)
+  : _M_alloc_fun(0), _M_free_fun(0),
+    _M_dynamic(false), _M_frozen(false), _M_constant(true) {
+  _M_setup(__CONST_CAST(char*,get), 0, n);
+}
+
+strstreambuf::strstreambuf(const signed char* get, streamsize n)
+  : _M_alloc_fun(0), _M_free_fun(0),
+    _M_dynamic(false), _M_frozen(false), _M_constant(true) {
+  _M_setup(__REINTERPRET_CAST(char*, __CONST_CAST(signed char*,get)), 0, n);
+}
+
+strstreambuf::strstreambuf(const unsigned char* get, streamsize n)
+  : _M_alloc_fun(0), _M_free_fun(0),
+    _M_dynamic(false), _M_frozen(false), _M_constant(true) {
+  _M_setup(__REINTERPRET_CAST(char*, __CONST_CAST(unsigned char*,get)), 0, n);
+}
+
+strstreambuf::~strstreambuf() {
+  if (_M_dynamic && !_M_frozen)
+    _M_free(eback());
+}
+
+void strstreambuf::freeze(bool frozenflag) {
+  if (_M_dynamic)
+    _M_frozen = frozenflag;
+}
+
+char* strstreambuf::str() {
+  freeze(true);
+  return eback();
+}
+
+int strstreambuf::pcount() const {
+  return int(pptr() ? pptr() - pbase() : 0);
+}
+
+strstreambuf::int_type strstreambuf::overflow(int_type c) {
+  if (c == traits_type::eof())
+    return traits_type::not_eof(c);
+
+  // Try to expand the buffer.
+  if (pptr() == epptr() && _M_dynamic && !_M_frozen && !_M_constant) {
+    ptrdiff_t old_size = epptr() - pbase();
+    ptrdiff_t new_size = (max)(2 * old_size, ptrdiff_t(1));
+
+    char* buf = _M_alloc(new_size);
+    if (buf) {
+      memcpy(buf, pbase(), old_size);
+
+      char* old_buffer = pbase();
+      bool reposition_get = false;
+      ptrdiff_t old_get_offset;
+      if (gptr() != 0) {
+        reposition_get = true;
+        old_get_offset = gptr() - eback();
+      }
+
+      setp(buf, buf + new_size);
+      pbump((int)old_size);
+
+      if (reposition_get)
+        setg(buf, buf + old_get_offset, buf + (max)(old_get_offset, old_size));
+
+      _M_free(old_buffer);
+    }
+  }
+
+  if (pptr() != epptr()) {
+    *pptr() = traits_type::to_char_type(c);
+    pbump(1);
+    return c;
+  }
+  else
+    return traits_type::eof();
+}
+
+strstreambuf::int_type strstreambuf::pbackfail(int_type c) {
+  if (gptr() != eback()) {
+    if (c == traits_type::eof()) {
+      gbump(-1);
+      return traits_type::not_eof(c);
+    }
+    else if (c == gptr()[-1]) {
+      gbump(-1);
+      return c;
+    }
+    else if (!_M_constant) {
+      gbump(-1);
+      *gptr() = traits_type::to_char_type(c);
+      return c;
+    }
+  }
+
+  return traits_type::eof();
+}
+
+strstreambuf::int_type strstreambuf::underflow() {
+  if (gptr() == egptr() && pptr() && pptr() > egptr())
+    setg(eback(), gptr(), pptr());
+
+  if (gptr() != egptr())
+    return (unsigned char) *gptr();
+  else
+    return _Traits::eof();
+}
+
+basic_streambuf<char, char_traits<char> >*
+strstreambuf::setbuf(char*, streamsize) {
+  return this;
+}
+
+strstreambuf::pos_type
+strstreambuf::seekoff(off_type off,
+                      ios_base::seekdir dir, ios_base::openmode mode) {
+  bool do_get = false;
+  bool do_put = false;
+
+  if ((mode & (ios_base::in | ios_base::out)) ==
+          (ios_base::in | ios_base::out) &&
+      (dir == ios_base::beg || dir == ios_base::end))
+    do_get = do_put = true;
+  else if (mode & ios_base::in)
+    do_get = true;
+  else if (mode & ios_base::out)
+    do_put = true;
+
+  // !gptr() is here because, according to D.7.1 paragraph 4, the seekable
+  // area is undefined if there is no get area.
+  if ((!do_get && !do_put) || (do_put && !pptr()) || !gptr())
+    return pos_type(off_type(-1));
+
+  char* seeklow  = eback();
+  char* seekhigh = epptr() ? epptr() : egptr();
+
+  off_type newoff;
+  switch(dir) {
+  case ios_base::beg:
+    newoff = 0;
+    break;
+  case ios_base::end:
+    newoff = seekhigh - seeklow;
+    break;
+  case ios_base::cur:
+    newoff = do_put ? pptr() - seeklow : gptr() - seeklow;
+    break;
+  default:
+    return pos_type(off_type(-1));
+  }
+
+  off += newoff;
+  if (off < 0 || off > seekhigh - seeklow)
+    return pos_type(off_type(-1));
+
+  if (do_put) {
+    if (seeklow + __STATIC_CAST(ptrdiff_t, off) < pbase()) {
+      setp(seeklow, epptr());
+      pbump((int)off);
+    }
+    else {
+      setp(pbase(), epptr());
+      pbump((int)(off - (pbase() - seeklow)));
+    }
+  }
+  if (do_get) {
+    if (off <= egptr() - seeklow)
+      setg(seeklow, seeklow + __STATIC_CAST(ptrdiff_t, off), egptr());
+    else if (off <= pptr() - seeklow)
+      setg(seeklow, seeklow + __STATIC_CAST(ptrdiff_t, off), pptr());
+    else
+      setg(seeklow, seeklow + __STATIC_CAST(ptrdiff_t, off), epptr());
+  }
+
+  return pos_type(newoff);
+}
+
+strstreambuf::pos_type
+strstreambuf::seekpos(pos_type pos, ios_base::openmode mode) {
+  return seekoff(pos - pos_type(off_type(0)), ios_base::beg, mode);
+}
+
+
+char* strstreambuf::_M_alloc(size_t n) {
+  if (_M_alloc_fun)
+    return __STATIC_CAST(char*,_M_alloc_fun(n));
+  else
+    return new char[n];
+}
+
+void strstreambuf::_M_free(char* p) {
+  if (p)
+    if (_M_free_fun)
+      _M_free_fun(p);
+    else
+      delete[] p;
+}
+
+void strstreambuf::_M_setup(char* get, char* put, streamsize n) {
+  if (get) {
+    size_t N = n > 0 ? size_t(n) : n == 0 ? strlen(get) : size_t(INT_MAX);
+
+    if (put) {
+      setg(get, get, get + N);
+      setp(put, put + N);
+    }
+    else {
+      setg(get, get, get + N);
+    }
+  }
+}
+
+//----------------------------------------------------------------------
+// Class istrstream
+
+istrstream::istrstream(char* s)
+  : basic_istream<char, char_traits<char> >(0), _M_buf(s, 0) {
+  this->init(&_M_buf);
+}
+
+istrstream::istrstream(const char* s)
+  : basic_istream<char, char_traits<char> >(0), _M_buf(s, 0) {
+  this->init(&_M_buf);
+}
+
+istrstream::istrstream(char* s, streamsize n)
+  : basic_istream<char, char_traits<char> >(0), _M_buf(s, n) {
+  this->init(&_M_buf);
+}
+
+istrstream::istrstream(const char* s, streamsize n)
+  : basic_istream<char, char_traits<char> >(0), _M_buf(s, n) {
+  this->init(&_M_buf);
+}
+
+istrstream::~istrstream() {}
+
+strstreambuf* istrstream::rdbuf() const {
+  return __CONST_CAST(strstreambuf*,&_M_buf);
+}
+
+char* istrstream::str() { return _M_buf.str(); }
+
+//----------------------------------------------------------------------
+// Class ostrstream
+
+ostrstream::ostrstream()
+  : basic_ostream<char, char_traits<char> >(0), _M_buf() {
+  basic_ios<char, char_traits<char> >::init(&_M_buf);
+}
+
+ostrstream::ostrstream(char* s, int n, ios_base::openmode mode)
+  : basic_ostream<char, char_traits<char> >(0),
+    _M_buf(s, n, mode & ios_base::app ? s + strlen(s) : s) {
+  basic_ios<char, char_traits<char> >::init(&_M_buf);
+}
+
+ostrstream::~ostrstream() {}
+
+strstreambuf* ostrstream::rdbuf() const {
+  return __CONST_CAST(strstreambuf*,&_M_buf);
+}
+
+void ostrstream::freeze(bool freezeflag) {
+  _M_buf.freeze(freezeflag);
+}
+
+char* ostrstream::str() {
+  return _M_buf.str();
+}
+
+int ostrstream::pcount() const {
+  return _M_buf.pcount();
+}
+
+
+//----------------------------------------------------------------------
+// Class strstream
+
+strstream::strstream()
+  : basic_iostream<char, char_traits<char> >(0), _M_buf() {
+  basic_ios<char, char_traits<char> >::init(&_M_buf);
+}
+
+strstream::strstream(char* s, int n, ios_base::openmode mode)
+  : basic_iostream<char, char_traits<char> >(0),
+    _M_buf(s, n, mode & ios_base::app ? s + strlen(s) : s) {
+  basic_ios<char, char_traits<char> >::init(&_M_buf);
+}
+
+strstream::~strstream() {}
+
+strstreambuf* strstream::rdbuf() const {
+  return __CONST_CAST(strstreambuf*,&_M_buf);
+}
+
+void strstream::freeze(bool freezeflag) {
+  _M_buf.freeze(freezeflag);
+}
+
+int strstream::pcount() const {
+  return _M_buf.pcount();
+}
+
+char* strstream::str() {
+  return _M_buf.str();
+}
+
+_STLP_END_NAMESPACE
+
+// Local Variables:
+// mode:C++
+// End: