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