The problem of GCC compiler structure in Linux

Recently in the Linux Learning C language programming, found that many of the original on VS in Linux are not compiled in the past, today encountered a problem is the structure of the compilation of the problem,

The approximate definition of a struct is

struct node{

int A;

int b;

};

The error is displayed when compiling with gcc: ' Node ' is not declared (first used within this function), which makes me feel strange, it's all right.

And then we looked at the information and changed it to this.

typedef struct node{

int A;

int b;

}node;

This will make the compilation successful.

The problem of GCC compiler structure in Linux