c - 错误 C2059 : syntax error : 'bad suffix on number' with cl. exe vc 编译器

Question

我尝试编译的代码片段是这样的

VOID
PTSetPageAttributexxyy (  
  IN UINT64                     2g,
  IN UINT64                     Base,
  IN UINT64                     Length,
  IN UINT32                     Ra,
  IN UINT32                     Wa,
  IN UINT32                     Xa,
  IN MY_ATTRIBUTE_SETTING setting
    );

我得到:

error C2059: syntax error : 'bad suffix on number'

用cl.exe vc编译器

Answer 1

参数名称 2g 无效。它必须以字母或 _ 开头。