string & csdbg::string::memalign ( u32  len, bool  keep = false  )

protectedvirtual

Allocate aligned memory, mandate a minimum buffer size.

Parameters

[in]	len	the mandatory length (without the trailing \0)
[in]	keep	true to keep the current data

Returns

*this

Exceptions

std::bad_alloc

Definition at line 26 of file string.cpp.

References __D_ASSERT, clear(), csdbg::g_memblock_sz, m_data, m_length, m_size, and unlikely.

Referenced by append(), format(), insert(), set(), and string().

{
  if ( unlikely(len < m_size) )
    return (keep) ? *this : clear();

  i8 *copy = NULL;
  if ( unlikely(keep) ) {
    __D_ASSERT(m_data != NULL);
    __D_ASSERT(strlen(m_data) == m_length);

    copy = new i8[m_length + 1];
    strcpy(copy, m_data);
  }

  /* Aligned size */
  m_size = (len + g_memblock_sz) / g_memblock_sz;
  m_size *= g_memblock_sz;

  try {
    delete[] m_data;
    m_data = NULL;
    m_data = new i8[m_size];
  }

  catch (...) {
    delete[] copy;
    throw;
  }

  if ( unlikely(keep) ) {
    strcpy(m_data, copy);
    delete[] copy;
    return *this;
  }

  return clear();
}

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