Exemplos de _M_free em C++ (Cpp)

Exemplo n.º 1

Arquivo: strstream.cpp Projeto: cdaffara/symbiandump-os2

_STLP_EXP_DECLSPEC strstreambuf::int_type strstreambuf::overflow(int_type c) {
  if (c == traits_type::eof())
    return traits_type::not_eof(c);
#ifdef __SYMBIAN32__
  if (pptr() != 0 && pptr() < epptr())
  {
    *pptr() = c;
    pbump(1);
    return c;
  }
  if (!_M_dynamic || _M_constant || _M_frozen)
  	return (EOF);	// can't extend
#endif
  // 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() = c;
    pbump(1);
    return c;
  }
  else
    return traits_type::eof();
}

Exemplo n.º 2

Arquivo: strstream.cpp Projeto: jcemelanda/wormux

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();
}

Exemplo n.º 3

Arquivo: strstream.cpp Projeto: jcemelanda/wormux

strstreambuf::~strstreambuf() {
  if (_M_dynamic && !_M_frozen)
    _M_free(eback());
}