user: 请显示与下面列出的汇编代码相匹配的C语言实现：

```asm
<utf8ToWChar>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %rdi,-0x48(%rbp)
  mov    %rsi,-0x50(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  mov    -0x48(%rbp),%rax
  mov    (%rax),%rax
  test   %rax,%rax
  sete   %al
  movzbl %al,%eax
  mov    %rax,%rdi
  call   <assert@plt>
  mov    -0x50(%rbp),%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cltq
  mov    %rax,-0x30(%rbp)
  mov    -0x30(%rbp),%rax
  shl    $0x2,%rax
  mov    %rax,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x20(%rbp)
  lea    D15(%rip),%rax
  mov    %rax,%rsi
  lea    D7(%rip),%rax
  mov    %rax,%rdi
  call   <iconv_open@plt>
  mov    %eax,-0x3c(%rbp)
  lea    -0x28(%rbp),%rdi
  lea    -0x20(%rbp),%rcx
  lea    -0x30(%rbp),%rdx
  lea    -0x38(%rbp),%rsi
  mov    -0x3c(%rbp),%eax
  mov    %rdi,%r8
  mov    %eax,%edi
  call   <iconv@plt>
  mov    %rax,-0x10(%rbp)
  cmpq   $0xffffffffffffffff,-0x10(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %rax,%rdi
  call   <assert@plt>
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <free@plt>
  mov    -0x50(%rbp),%rax
  mov    %rax,-0x38(%rbp)
  mov    -0x50(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cltq
  mov    %rax,-0x30(%rbp)
  mov    -0x30(%rbp),%rax
  shl    $0x2,%rax
  mov    -0x28(%rbp),%rdx
  sub    %rdx,%rax
  add    $0x4,%rax
  mov    %rax,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <malloc@plt>
  mov    %rax,-0x18(%rbp)
  mov    -0x18(%rbp),%rax
  mov    %rax,-0x20(%rbp)
  lea    -0x28(%rbp),%rdi
  lea    -0x20(%rbp),%rcx
  lea    -0x30(%rbp),%rdx
  lea    -0x38(%rbp),%rsi
  mov    -0x3c(%rbp),%eax
  mov    %rdi,%r8
  mov    %eax,%edi
  call   <iconv@plt>
  mov    %rax,-0x10(%rbp)
  cmpq   $0xffffffffffffffff,-0x10(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %rax,%rdi
  call   <assert@plt>
  mov    -0x3c(%rbp),%eax
  mov    %eax,%edi
  call   <iconv_close@plt>
  movq   $0x4,-0x28(%rbp)
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <assert@plt>
  mov    -0x20(%rbp),%rax
  movl   $0x0,(%rax)
  mov    -0x48(%rbp),%rax
  mov    -0x18(%rbp),%rdx
  mov    %rdx,(%rax)
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L8
  call   <__stack_chk_fail@plt>
L8:
  leave
  ret
```

tool_calls: name: unpack_data
arguments: data_tag: D15
datatype: string
name: unpack_data
arguments: data_tag: D7
datatype: string

tool: D15: UTF-8

tool: D7: WCHAR_T

assistant: ```c
void utf8ToWChar(wchar_t **out_wCharString, char const *const in_UTF8_STRING) {
  assert(*out_wCharString == NULL);
  char *utf8Ptr = (char *)in_UTF8_STRING;
  size_t utf8StringBytes = strlen(in_UTF8_STRING);
  size_t wCharStringBytes = sizeof(wchar_t) * utf8StringBytes;
  wchar_t *wCharString = malloc(wCharStringBytes);
  char *wCharPtr = (char *)wCharString;
  iconv_t c8t32 = iconv_open("WCHAR_T", "UTF-8");
  size_t error = iconv(c8t32, &utf8Ptr, &utf8StringBytes, &wCharPtr, &wCharStringBytes);
  assert(error != (size_t)(-1));
  free(wCharString);
  utf8Ptr = (char *)in_UTF8_STRING;
  utf8StringBytes = sizeof(char) * strlen(in_UTF8_STRING);
  wCharStringBytes = sizeof(wchar_t) * utf8StringBytes - wCharStringBytes + sizeof(wchar_t);
  wCharString = malloc(wCharStringBytes);
  wCharPtr = (char *)wCharString;
  error = iconv(c8t32, &utf8Ptr, &utf8StringBytes, &wCharPtr, &wCharStringBytes);
  assert(error != (size_t)(-1));
  iconv_close(c8t32);
  assert(wCharStringBytes = sizeof(wchar_t));
  *(wchar_t *)(wCharPtr) = L'\0';
  *out_wCharString = wCharString;
}
```