onst void *__thiscall sub_414CE0(const void **this, unsigned int a2)
{
  const void **v2; // esi
  unsigned int v3; // ebx
  unsigned int v4; // edi
  unsigned int v5; // ecx
  void *v6; // ecx
  const void *result; // eax
  size_t v8; // [esp-4h] [ebp-30h]
  const void *v9; // [esp+18h] [ebp-14h]

  v2 = this;
  if ( a2 > 0x7FFFFFFE )
    sub_41E6EA();
  v3 = (unsigned int)this[5];
  v4 = a2 | 7;
  if ( (a2 | 7) <= 0x7FFFFFFE )
  {
    v5 = v3 >> 1;
    if ( v3 >> 1 > v4 / 3 )
    {
      v4 = 2147483646;
      if ( v3 <= 2147483646 - v5 )
        v4 = v5 + v3;
    }
  }
  else
  {
    v4 = a2;
  }
  v6 = std::_Allocate(v4 + 1, 2u, 1);
  v9 = v6;
  v8 = 2 * (_DWORD)v2[4] + 2;
  if ( (unsigned int)v2[5] < 8 )
  {
    memmove_0(v6, v2, v8);
  }
  else
  {
    memmove_0(v6, *v2, v8);
    std::_Deallocate((void *)*v2, v3 + 1, 2u);
  }
  result = v9;
  *v2 = v9;
  v2[5] = (const void *)v4;
  return result;
}
void **__thiscall sub_414E9E(void **this, void **a2, unsigned int a3, unsigned int a4)
{
  _DWORD *v4; // ebx
  void **v5; // esi
  unsigned int v6; // edi
  unsigned int v7; // edi
  void *v8; // ecx
  _WORD *v9; // eax

  v4 = a2;
  v5 = this;
  v6 = (unsigned int)a2[4];
  if ( v6 < a3 )
    sub_414E93();
  v7 = v6 - a3;
  if ( v7 >= a4 )
    v7 = a4;
  if ( this == a2 )
  {
    std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>>::erase(v7 + a3);
    std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>>::erase(0, a3);
  }
  else if ( (unsigned __int8)std::basic_string<wchar_t,std::char_traits<wchar_t>,std::allocator<wchar_t>>::_Grow(v7) )
  {
    if ( (unsigned int)a2[5] >= 8 )
      v4 = *a2;
    if ( (unsigned int)v5[5] < 8 )
      v8 = v5;
    else
      v8 = *v5;
    memmove_0(v8, (char *)v4 + 2 * a3, 2 * v7);
    v5[4] = (void *)v7;
    if ( (unsigned int)v5[5] < 8 )
      v9 = v5;
    else
      v9 = *v5;
    v9[v7] = 0;
  }
  return v5;
}