user: Translate the below assembly code into C programming language:

```asm
<simplify>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  cmpq   $0x0,-0x38(%rbp)
  jne    L16
  mov    D19(%rip),%rax
  mov    (%rax),%edx
  mov    D1(%rip),%rax
  mov    %edx,(%rax)
  mov    $0x0,%eax
  jmp    L36
L16:
  mov    -0x38(%rbp),%rax
  mov    %rax,%rdi
  call   <strdup@plt>
  mov    %rax,-0x20(%rbp)
  cmpq   $0x0,-0x20(%rbp)
  jne    L102
  mov    $0x0,%eax
  jmp    L36
L102:
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,%rsi
  mov    $0x1,%edi
  call   <calloc@plt>
  mov    %rax,-0x10(%rbp)
  cmpq   $0x0,-0x10(%rbp)
  jne    L31
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    $0x0,%eax
  jmp    L36
L31:
  mov    -0x18(%rbp),%rdx
  mov    -0x20(%rbp),%rcx
  mov    -0x10(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <mbstowcs@plt>
  mov    %rax,-0x8(%rbp)
  cmpq   $0xffffffffffffffff,-0x8(%rbp)
  jne    L61
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    $0x0,%eax
  jmp    L36
L61:
  mov    -0x10(%rbp),%rax
  mov    %rax,-0x28(%rbp)
  movl   $0x0,-0x2c(%rbp)
  jmp    L121
L115:
  mov    -0x2c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x28(%rbp),%rax
  lea    0x1(%rax),%rdx
  mov    %rdx,-0x28(%rbp)
  movzbl (%rcx),%edx
  mov    %dl,(%rax)
  mov    -0x2c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  jne    L52
  addl   $0x1,-0x2c(%rbp)
  jmp    L68
L146:
  addl   $0x1,-0x2c(%rbp)
L68:
  mov    -0x2c(%rbp),%eax
  movslq %eax,%rdx
  mov    -0x10(%rbp),%rax
  add    %rdx,%rax
  movzbl (%rax),%eax
  cmp    $0x2f,%al
  je     L146
  subl   $0x1,-0x2c(%rbp)
L52:
  addl   $0x1,-0x2c(%rbp)
L121:
  mov    -0x2c(%rbp),%eax
  cltq
  cmp    %rax,-0x8(%rbp)
  ja     L115
  mov    -0x28(%rbp),%rax
  movb   $0x0,(%rax)
  mov    -0x18(%rbp),%rdx
  mov    -0x10(%rbp),%rcx
  mov    -0x20(%rbp),%rax
  mov    %rcx,%rsi
  mov    %rax,%rdi
  call   <wcstombs@plt>
  cmp    $0xffffffffffffffff,%rax
  jne    L104
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    $0x0,%eax
  jmp    L36
L104:
  mov    -0x10(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x20(%rbp),%rax
L36:
  leave
  ret
```

assistant: ```c
char *simplify(const char *str) {
  int i;
  size_t mbPathlen;
  size_t wcPathlen;
  wchar_t *wptr;
  wchar_t *wcPath;
  char *mbPath;
  if (!str) {
    errno = ENOENT;
    return (NULL);
  }
  if ((mbPath = strdup(str)) == NULL) {
    return (NULL);
  }
  mbPathlen = strlen(mbPath);
  if ((wcPath = calloc(sizeof(wchar_t), mbPathlen + 1)) == NULL) {
    free(mbPath);
    return (NULL);
  }
  if ((wcPathlen = mbstowcs(wcPath, mbPath, mbPathlen)) == (size_t)-1) {
    free(mbPath);
    free(wcPath);
    return (NULL);
  }
  for (wptr = wcPath, i = 0; i < wcPathlen; i++) {
    *wptr++ = wcPath[i];
    if (wcPath[i] == '/') {
      i++;
      while (wcPath[i] == '/') {
        i++;
      }
      i--;
    }
  }
  *wptr = '\0';
  if (wcstombs(mbPath, wcPath, mbPathlen) == (size_t)-1) {
    free(mbPath);
    free(wcPath);
    return (NULL);
  }
  free(wcPath);
  return (mbPath);
}
```