我创建的功能是：@H_301_3@

@H_301_3@

34.bool checknull(struct node* node){
35.    if ( node != NULL )
36.        return TRUE;
37.       
38.    return false;
39.}

我在编译时得到的是@H_301_3@

@H_301_3@

bininsertion.c:34:1: error: unknown type name ‘bool’
bininsertion.c: In function ‘checknull’:
bininsertion.c:36:10: error: ‘TRUE’ undeclared (first use in this function)
bininsertion.c:36:10: note: each undeclared identifier is reported only once for each  function it appears in
bininsertion.c:38:9: error: ‘false’ undeclared (first use in this function)

我用小写和大写字母都试过“真,假”,但似乎没有用……