user: 这段汇编代码用C语言表示是什么样的？

```asm
<strtol>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %edx,-0x44(%rbp)
  mov    -0x38(%rbp),%rax
  mov    %rax,-0x18(%rbp)
  movl   $0x0,-0x24(%rbp)
L74:
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  mov    %al,-0x25(%rbp)
  movzbl -0x25(%rbp),%eax
  mov    %eax,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L74
  cmpb   $0x2d,-0x25(%rbp)
  jne    L39
  movl   $0x1,-0x24(%rbp)
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  mov    %al,-0x25(%rbp)
  jmp    L341
L39:
  cmpb   $0x2b,-0x25(%rbp)
  jne    L341
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  mov    %al,-0x25(%rbp)
L341:
  cmpl   $0x0,-0x44(%rbp)
  je     L57
  cmpl   $0x10,-0x44(%rbp)
  jne    L122
L57:
  cmpb   $0x30,-0x25(%rbp)
  jne    L122
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x78,%al
  je     L34
  mov    -0x18(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x58,%al
  jne    L122
L34:
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  mov    %al,-0x25(%rbp)
  addq   $0x2,-0x18(%rbp)
  movl   $0x10,-0x44(%rbp)
L122:
  cmpl   $0x0,-0x44(%rbp)
  jne    L60
  cmpb   $0x30,-0x25(%rbp)
  jne    L191
  mov    $0x8,%eax
  jmp    L2
L191:
  mov    $0xa,%eax
L2:
  mov    %eax,-0x44(%rbp)
L60:
  cmpl   $0x0,-0x24(%rbp)
  je     L16
  mov    D4(%rip),%rax
  mov    (%rax),%rax
  neg    %rax
  jmp    L312
L16:
  mov    D6(%rip),%rax
  mov    (%rax),%rax
L312:
  mov    %rax,-0x8(%rbp)
  mov    -0x44(%rbp),%eax
  movslq %eax,%rcx
  mov    -0x8(%rbp),%rax
  mov    $0x0,%edx
  div    %rcx
  mov    %rdx,%rax
  mov    %eax,-0x1c(%rbp)
  mov    -0x44(%rbp),%eax
  movslq %eax,%rsi
  mov    -0x8(%rbp),%rax
  mov    $0x0,%edx
  div    %rsi
  mov    %rax,-0x8(%rbp)
  movq   $0x0,-0x10(%rbp)
  movl   $0x0,-0x20(%rbp)
L291:
  movzbl -0x25(%rbp),%eax
  mov    %eax,%edi
  call   <isdigit@plt>
  test   %rax,%rax
  je     L59
  subb   $0x30,-0x25(%rbp)
  jmp    L54
L59:
  movzbl -0x25(%rbp),%eax
  mov    %eax,%edi
  call   <isalpha@plt>
  test   %rax,%rax
  je     L146
  movzbl -0x25(%rbp),%eax
  mov    %eax,%edi
  call   <isupper@plt>
  test   %rax,%rax
  je     L142
  mov    $0x37,%eax
  jmp    L22
L142:
  mov    $0x57,%eax
L22:
  sub    %al,-0x25(%rbp)
L54:
  movzbl -0x25(%rbp),%eax
  cmp    %eax,-0x44(%rbp)
  jle    L110
  cmpl   $0x0,-0x20(%rbp)
  js     L55
  mov    -0x10(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  ja     L282
  mov    -0x10(%rbp),%rax
  cmp    -0x8(%rbp),%rax
  jne    L7
  movzbl -0x25(%rbp),%eax
  cmp    %eax,-0x1c(%rbp)
  jge    L7
L282:
  movl   $0xffffffff,-0x20(%rbp)
  jmp    L82
L7:
  movl   $0x1,-0x20(%rbp)
  mov    -0x44(%rbp),%eax
  cltq
  mov    -0x10(%rbp),%rdx
  imul   %rdx,%rax
  mov    %rax,-0x10(%rbp)
  movzbl -0x25(%rbp),%eax
  add    %rax,-0x10(%rbp)
  jmp    L82
L55:
  nop
L82:
  mov    -0x18(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x18(%rbp)
  movzbl (%rax),%eax
  mov    %al,-0x25(%rbp)
  jmp    L291
L146:
  nop
  jmp    L132
L110:
  nop
L132:
  cmpl   $0x0,-0x20(%rbp)
  jns    L301
  cmpl   $0x0,-0x24(%rbp)
  je     L140
  mov    D4(%rip),%rax
  mov    (%rax),%rax
  jmp    L83
L140:
  mov    D6(%rip),%rax
  mov    (%rax),%rax
L83:
  mov    %rax,-0x10(%rbp)
  jmp    L63
L301:
  cmpl   $0x0,-0x24(%rbp)
  je     L63
  negq   -0x10(%rbp)
L63:
  cmpq   $0x0,-0x40(%rbp)
  je     L154
  cmpl   $0x0,-0x20(%rbp)
  je     L238
  mov    -0x18(%rbp),%rax
  sub    $0x1,%rax
  jmp    L1
L238:
  mov    -0x38(%rbp),%rax
L1:
  mov    -0x40(%rbp),%rdx
  mov    %rax,(%rdx)
L154:
  mov    -0x10(%rbp),%rax
  leave
  ret
```

assistant: ```c
long strtol(const char *nptr, char **endptr, int base) {
  const char *s = nptr;
  unsigned long acc;
  unsigned char c;
  unsigned long cutoff;
  int neg = 0, any, cutlim;
  do {
    c = *s++;
  } while (isspace(c));
  if (c == '-') {
    neg = 1;
    c = *s++;
  } else if (c == '+') {
    c = *s++;
  }
  if ((base == 0 || base == 16) && c == '0' && (*s == 'x' || *s == 'X')) {
    c = s[1];
    s += 2;
    base = 16;
  }
  if (base == 0) {
    base = c == '0' ? 8 : 10;
  }
  cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX;
  cutlim = cutoff % (unsigned long)base;
  cutoff /= (unsigned long)base;
  for (acc = 0, any = 0;; c = *s++) {
    if (isdigit(c)) {
      c -= '0';
    } else if (isalpha(c)) {
      c -= isupper(c) ? 'A' - 10 : 'a' - 10;
    } else {
      break;
    }
    if (c >= base) {
      break;
    }
    if (any < 0) {
      continue;
    }
    if (acc > cutoff || (acc == cutoff && c > cutlim)) {
      any = -1;
    } else {
      any = 1;
      acc *= base;
      acc += c;
    }
  }
  if (any < 0) {
    acc = neg ? LONG_MIN : LONG_MAX;
  } else if (neg) {
    acc = -acc;
  }
  if (endptr != 0) {
    *((const char **)endptr) = any ? s - 1 : nptr;
  }
  return acc;
}
```