C语法归约之数组和指针（1）

Myth丶恋晨 2022-08-12 05:59 135阅读 0赞

上一篇，开始了语法归约，给出变量声明定义初始化归约过程，和c99文法图，请查阅[这里][Link 1]，相关文法图在这里依然要使用

### 1、数组归约 ###

#### 1.1、示例代码 ####

int a[10];
    int a[2][3];
    int a[2][3][4];
    
    struct AA boy[100];
    struct AA boy[100][100];
    union BB girl[10];

#### 1.2、归约过程 ####

curr: int  next: a  
    type-specifier 
    declaration-specifiers 
    
    curr: ID  next: [  
    declaration-specifiers direct-declarator 
    
    curr: [  next: 10  
    
    curr: 10  next: ]  
    declaration-specifiers direct-declarator [ primary-expression 
    declaration-specifiers direct-declarator [ postfix-expression 
    declaration-specifiers direct-declarator [ unary-expression 
    declaration-specifiers direct-declarator [ cast-expression 
    declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-specifiers direct-declarator [ additive-expression 
    declaration-specifiers direct-declarator [ shift-expression 
    declaration-specifiers direct-declarator [ relational-expression 
    declaration-specifiers direct-declarator [ equality-expression 
    declaration-specifiers direct-declarator [ AND-expression 
    declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-specifiers direct-declarator [ conditional-expression 
    declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-specifiers direct-declarator 
    declaration-specifiers declarator 
    declaration-specifiers init-declarator 
    declaration-specifiers init-declarator-list 
    
    curr: ;  next: int  
    declaration 
    declaration-list 
    
    curr: int  next: a  
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: ID  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 2  
    
    curr: 2  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 3  
    
    curr: 3  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-list declaration-specifiers direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: int  
    declaration-list declaration 
    declaration-list 
    
    curr: int  next: a  
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: ID  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 2  
    
    curr: 2  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 3  
    
    curr: 3  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 4  
    
    curr: 4  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-list declaration-specifiers direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: struct  
    declaration-list declaration 
    declaration-list 
    
    curr: struct  next: AA  
    
    curr: boy  next: ID  
    declaration-list struct-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: ID  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 100  
    
    curr: 100  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-list declaration-specifiers direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: struct  
    declaration-list declaration 
    declaration-list 
    
    curr: struct  next: AA  
    
    curr: boy  next: ID  
    declaration-list struct-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: ID  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 100  
    
    curr: 100  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 100  
    
    curr: 100  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-list declaration-specifiers direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: union  
    declaration-list declaration 
    declaration-list 
    
    curr: union  next: BB  
    
    curr: girl  next: ID  
    declaration-list union-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: ID  next: [  
    declaration-list declaration-specifiers direct-declarator 
    
    curr: [  next: 10  
    
    curr: 10  next: ]  
    declaration-list declaration-specifiers direct-declarator [ primary-expression 
    declaration-list declaration-specifiers direct-declarator [ postfix-expression 
    declaration-list declaration-specifiers direct-declarator [ unary-expression 
    declaration-list declaration-specifiers direct-declarator [ cast-expression 
    declaration-list declaration-specifiers direct-declarator [ multiplicative-expression 
    declaration-list declaration-specifiers direct-declarator [ additive-expression 
    declaration-list declaration-specifiers direct-declarator [ shift-expression 
    declaration-list declaration-specifiers direct-declarator [ relational-expression 
    declaration-list declaration-specifiers direct-declarator [ equality-expression 
    declaration-list declaration-specifiers direct-declarator [ AND-expression 
    declaration-list declaration-specifiers direct-declarator [ exclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ inclusive-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-list declaration-specifiers direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: NULL  
    declaration-list declaration 
    declaration-list 
    translation-unit

#### 1.3、总结说明 ####

无论数组是多少维度，每个维度的归约过程都是一样一样的！没有区别。由于(expression),id, string, 常量会归约到primary-expression。因此，从文法上讲，数组的定义中可以出现表达式和变量。但是后期编译要为数组分配空间，而变量需要计算才能知道大小，因此是不能在数组定义时候使用变量的！

### 2、指针归约 ###

#### 2.1、示例代码 ####

static int *ip;
    signed char *str;
    char **str;
    void *vp;
    int *a;
    int ****a;
    struct AA *boy;
    struct AA **boy;
    struct AA ****boy;
    union BB *girl;
    union BB **girl;

#### 2.2、归约过程 ####

curr: static  next: int  
    storage-class-specifier 
    
    curr: int  next: *  
    storage-class-specifier type-specifier 
    storage-class-specifier declaration-specifiers 
    declaration-specifiers 
    
    curr: *  next: ip  
    declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-specifiers pointer direct-declarator 
    declaration-specifiers declarator 
    declaration-specifiers init-declarator 
    declaration-specifiers init-declarator-list 
    
    curr: ;  next: signed  
    declaration 
    declaration-list 
    
    curr: signed  next: char  
    declaration-list type-specifier 
    
    curr: char  next: *  
    declaration-list type-specifier type-specifier 
    declaration-list type-specifier declaration-specifiers 
    declaration-list declaration-specifiers 
    
    curr: *  next: str  
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: char  
    declaration-list declaration 
    declaration-list 
    
    curr: char  next: *  
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: *  
    
    curr: *  next: str  
    declaration-list declaration-specifiers * pointer 
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: void  
    declaration-list declaration 
    declaration-list 
    
    curr: void  next: *  
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: vp  
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: int  
    declaration-list declaration 
    declaration-list 
    
    curr: int  next: *  
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: a  
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: int  
    declaration-list declaration 
    declaration-list 
    
    curr: int  next: *  
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: *  
    
    curr: *  next: *  
    
    curr: *  next: *  
    
    curr: *  next: a  
    declaration-list declaration-specifiers * * * pointer 
    declaration-list declaration-specifiers * * pointer 
    declaration-list declaration-specifiers * pointer 
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: struct  
    declaration-list declaration 
    declaration-list 
    
    curr: struct  next: AA  
    
    curr: ID  next: *  
    declaration-list struct-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: boy  
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: struct  
    declaration-list declaration 
    declaration-list 
    
    curr: struct  next: AA  
    
    curr: ID  next: *  
    declaration-list struct-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: *  
    
    curr: *  next: boy  
    declaration-list declaration-specifiers * pointer 
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: struct  
    declaration-list declaration 
    declaration-list 
    
    curr: struct  next: AA  
    
    curr: ID  next: *  
    declaration-list struct-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: *  
    
    curr: *  next: *  
    
    curr: *  next: *  
    
    curr: *  next: boy  
    declaration-list declaration-specifiers * * * pointer 
    declaration-list declaration-specifiers * * pointer 
    declaration-list declaration-specifiers * pointer 
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: union  
    declaration-list declaration 
    declaration-list 
    
    curr: union  next: BB  
    
    curr: ID  next: *  
    declaration-list union-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: girl  
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: union  
    declaration-list declaration 
    declaration-list 
    
    curr: union  next: BB  
    
    curr: ID  next: *  
    declaration-list union-specifier 
    declaration-list type-specifier 
    declaration-list declaration-specifiers 
    
    curr: *  next: *  
    
    curr: *  next: girl  
    declaration-list declaration-specifiers * pointer 
    declaration-list declaration-specifiers pointer 
    
    curr: ID  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: NULL  
    declaration-list declaration 
    declaration-list 
    translation-unit

#### 2.3、总结说明 ####

指针定义前面挂多少个星都无妨，只要你愿意挂千万，文法照样解析。只是使用产生式poiner->\*pointer迭代次数多点而已！

### 3、指针和数组的一起归约 ###

#### 3.1、示例代码 ####

int *a[11];
    int (**a)[5];
    int (*a)[5][4];
    int *a[11][22];
    char **a[2];
    char ***a[2];
    struct AA *boy[11];
    struct AA **boy[11][22];
    struct AA (*boy)[11];
    struct AA (**boy)[11];
    union BB *girl[10][22];
    union BB **girl[10];

#### 3.2、归约过程 ####

curr: int  next: *  
    type-specifier 
    declaration-specifiers 
    
    curr: *  next: a  
    declaration-specifiers pointer 
    
    curr: ID  next: [  
    declaration-specifiers pointer direct-declarator 
    
    curr: [  next: 11  
    
    curr: 11  next: ]  
    declaration-specifiers pointer direct-declarator [ primary-expression 
    declaration-specifiers pointer direct-declarator [ postfix-expression 
    declaration-specifiers pointer direct-declarator [ unary-expression 
    declaration-specifiers pointer direct-declarator [ cast-expression 
    declaration-specifiers pointer direct-declarator [ multiplicative-expression 
    declaration-specifiers pointer direct-declarator [ additive-expression 
    declaration-specifiers pointer direct-declarator [ shift-expression 
    declaration-specifiers pointer direct-declarator [ relational-expression 
    declaration-specifiers pointer direct-declarator [ equality-expression 
    declaration-specifiers pointer direct-declarator [ AND-expression 
    declaration-specifiers pointer direct-declarator [ exclusive-OR-expression 
    declaration-specifiers pointer direct-declarator [ inclusive-OR-expression 
    declaration-specifiers pointer direct-declarator [ logical-AND-expression 
    declaration-specifiers pointer direct-declarator [ logical-OR-expression 
    declaration-specifiers pointer direct-declarator [ conditional-expression 
    declaration-specifiers pointer direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-specifiers pointer direct-declarator 
    declaration-specifiers declarator 
    declaration-specifiers init-declarator 
    declaration-specifiers init-declarator-list 
    
    curr: ;  next: int  
    declaration 
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    declaration-list declaration-specifiers pointer direct-declarator [ logical-AND-expression 
    declaration-list declaration-specifiers pointer direct-declarator [ logical-OR-expression 
    declaration-list declaration-specifiers pointer direct-declarator [ conditional-expression 
    declaration-list declaration-specifiers pointer direct-declarator [ assignment-expression 
    
    curr: ]  next: ;  
    declaration-list declaration-specifiers pointer direct-declarator 
    declaration-list declaration-specifiers declarator 
    declaration-list declaration-specifiers init-declarator 
    declaration-list declaration-specifiers init-declarator-list 
    
    curr: ;  next: NULL  
    declaration-list declaration 
    declaration-list 
    translation-unit

#### 3.3、总结说明 ####

（\*a）\*a 都归约到direct-declarator。它的区分在归约过程上，以及后期类型解析上！

[下文:函数][Link 2]

[Link 1]: http://blog.csdn.net/cwcmcw/article/details/39378607
[Link 2]: http://blog.csdn.net/cwcmcw/article/details/39434417