user: Demonstrate the C code that generates the assembly output below:

```asm
<ur_stringToDate>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  push   %rbx
  sub    $0x78,%rsp
  mov    %rdi,-0x68(%rbp)
  mov    %rsi,-0x70(%rbp)
  mov    %rdx,-0x78(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x18(%rbp)
  xor    %eax,%eax
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x48(%rbp)
  movl   $0x0,-0x5c(%rbp)
  mov    -0x70(%rbp),%rax
  sub    -0x68(%rbp),%rax
  mov    %eax,-0x58(%rbp)
  cmpl   $0x9,-0x58(%rbp)
  jle    L309
  mov    -0x68(%rbp),%rax
  add    $0x4,%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L309
  mov    -0x68(%rbp),%rax
  add    $0x7,%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  je     L386
L309:
  cmpq   $0x0,-0x78(%rbp)
  je     L151
  mov    -0x78(%rbp),%rax
  mov    -0x68(%rbp),%rdx
  mov    %rdx,(%rax)
L151:
  pxor   %xmm0,%xmm0
  jmp    L364
L386:
  mov    -0x68(%rbp),%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  imul   $0x64,%eax,%ebx
  mov    -0x68(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  add    %ebx,%eax
  sub    $0x76c,%eax
  mov    %eax,-0x40(%rbp)
  mov    -0x68(%rbp),%rax
  add    $0x5,%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  sub    $0x1,%eax
  mov    %eax,-0x3c(%rbp)
  mov    -0x68(%rbp),%rax
  add    $0x8,%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  mov    %eax,-0x38(%rbp)
  movl   $0x0,-0x34(%rbp)
  movl   $0x0,-0x30(%rbp)
  movq   $0x0,-0x28(%rbp)
  movl   $0xffffffff,-0x2c(%rbp)
  mov    -0x68(%rbp),%rax
  add    $0xa,%rax
  mov    %rax,-0x50(%rbp)
  cmpl   $0xc,-0x58(%rbp)
  jle    L141
  mov    -0x50(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x54,%al
  je     L22
  mov    -0x50(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L141
L22:
  mov    -0x50(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x50(%rbp),%rdx
  mov    -0x70(%rbp),%rax
  sub    %rdx,%rax
  mov    %eax,-0x58(%rbp)
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  mov    %eax,-0x34(%rbp)
  mov    -0x50(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,-0x50(%rbp)
  cmpl   $0x4,-0x58(%rbp)
  jle    L335
  mov    -0x50(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x3a,%al
  jne    L335
  mov    -0x50(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  mov    %eax,-0x30(%rbp)
  mov    -0x50(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x50(%rbp),%rax
  cmp    %rax,-0x70(%rbp)
  je     L318
  mov    -0x50(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x3a,%al
  jne    L321
  mov    -0x50(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x50(%rbp),%rax
  lea    -0x50(%rbp),%rdx
  mov    -0x70(%rbp),%rcx
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <str_toDouble@plt>
  movq   %xmm0,%rax
  mov    %rax,-0x48(%rbp)
  mov    -0x50(%rbp),%rax
  cmp    %rax,-0x70(%rbp)
  je     L188
L321:
  mov    -0x50(%rbp),%rax
  movzbl (%rax),%eax
  movsbl %al,%eax
  cmp    $0x5a,%eax
  je     L289
  cmp    $0x5a,%eax
  jg     L291
  cmp    $0x2b,%eax
  je     L334
  cmp    $0x2d,%eax
  je     L301
  jmp    L291
L334:
  movl   $0x1,-0x5c(%rbp)
  jmp    L78
L301:
  movl   $0xffffffff,-0x5c(%rbp)
  jmp    L78
L289:
  movl   $0x1,-0x5c(%rbp)
  mov    -0x50(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  jmp    L291
L78:
  mov    -0x50(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x50(%rbp),%rdx
  mov    -0x70(%rbp),%rax
  sub    %rdx,%rax
  mov    %eax,-0x58(%rbp)
  cmpl   $0x1,-0x58(%rbp)
  jle    L235
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  mov    %eax,-0x54(%rbp)
  mov    -0x34(%rbp),%edx
  cmpl   $0x0,-0x5c(%rbp)
  js     L59
  mov    -0x54(%rbp),%eax
  neg    %eax
  jmp    L299
L59:
  mov    -0x54(%rbp),%eax
L299:
  add    %edx,%eax
  mov    %eax,-0x34(%rbp)
  mov    -0x50(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,-0x50(%rbp)
  cmpl   $0x4,-0x58(%rbp)
  jle    L105
  mov    -0x50(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x3a,%al
  jne    L105
  mov    -0x50(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x50(%rbp)
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <twoInt@plt>
  mov    %eax,-0x54(%rbp)
  mov    -0x30(%rbp),%edx
  cmpl   $0x0,-0x5c(%rbp)
  js     L215
  mov    -0x54(%rbp),%eax
  neg    %eax
  jmp    L31
L215:
  mov    -0x54(%rbp),%eax
L31:
  add    %edx,%eax
  mov    %eax,-0x30(%rbp)
  mov    -0x50(%rbp),%rax
  add    $0x2,%rax
  mov    %rax,-0x50(%rbp)
  jmp    L146
L141:
  nop
  jmp    L146
L335:
  nop
  jmp    L146
L318:
  nop
  jmp    L146
L188:
  nop
  jmp    L146
L291:
  nop
  jmp    L146
L235:
  nop
  jmp    L146
L105:
  nop
L146:
  cmpq   $0x0,-0x78(%rbp)
  je     L67
  mov    -0x50(%rbp),%rdx
  mov    -0x78(%rbp),%rax
  mov    %rdx,(%rax)
L67:
  cmpl   $0x0,-0x5c(%rbp)
  je     L118
  lea    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <timegm@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
  jmp    L193
L118:
  lea    -0x40(%rbp),%rax
  mov    %rax,%rdi
  call   <mktime@plt>
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
L193:
  addsd  -0x48(%rbp),%xmm0
L364:
  movq   %xmm0,%rax
  mov    -0x18(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L250
  call   <__stack_chk_fail@plt>
L250:
  movq   %rax,%xmm0
  mov    -0x8(%rbp),%rbx
  leave
  ret
```

assistant: ```c
double ur_stringToDate(const char *start, const char *end, const char **pos) {
  struct tm tmp;
  const char *it;
  double sec = 0.0;
  int utc = 0;
  int offset;
  int len = end - start;
  if ((len < 10) || (start[4] != '-') || (start[7] != '-')) {
    if (pos)
      *pos = start;
    return 0.0;
  }
  tmp.tm_year = (twoInt(start) * 100 + twoInt(start + 2)) - 1900;
  tmp.tm_mon = twoInt(start + 5) - 1;
  tmp.tm_mday = twoInt(start + 8);
  tmp.tm_hour = 0;
  tmp.tm_min = 0;
  tmp.tm_sec = 0;
  tmp.tm_isdst = -1;
  it = start + 10;
  if ((len < 13) || (*it != 'T' && *it != '/'))
    goto done;
  ++it;
  len = end - it;
  tmp.tm_hour = twoInt(it);
  it += 2;
  if ((len < 5) || (*it != ':'))
    goto done;
  tmp.tm_min = twoInt(++it);
  it += 2;
  if (it == end)
    goto done;
  if (*it == ':') {
    ++it;
    sec = str_toDouble(it, end, &it);
    if (it == end)
      goto done;
  }
  switch (*it) {
  case '+':
    utc = 1;
    break;
  case '-':
    utc = -1;
    break;
  case 'Z':
    utc = 1;
    ++it;
  default:
    goto done;
  }
  ++it;
  len = end - it;
  if (len < 2)
    goto done;
  offset = twoInt(it);
  tmp.tm_hour += (utc < 0) ? offset : -offset;
  it += 2;
  if ((len < 5) || (*it != ':'))
    goto done;
  ++it;
  offset = twoInt(it);
  tmp.tm_min += (utc < 0) ? offset : -offset;
  it += 2;
done:
  if (pos)
    *pos = it;
  return sec + (double)(utc ? timegm(&tmp) : mktime(&tmp));
}
```