Question

我正在为嵌入式系统实验室创建一个有限状态机。编译器（我正在使用ARM的Kiel）抱怨我试图声明一个struct的实例数组。我做错了什么？

我的代码（部分内容）：

struct State {
    unsigned long OutCars;
    unsigned long OutWalk;
    unsigned long Time;
    unsigned long Next[8];
};

typedef const struct State SType;


SType FSM[11] = {
    {0x0C, PF1, 100, {goW, goW, waitW, waitW, waitW, waitW, waitW, waitW} },
    {0x14, PF1, 50,  {goW, goW, goS, goS, goWa, goWa, goWa, goWa} },
    {0x21, PF1, 100, {goS, waitS, goS, waitS, waitS, waitS, waitS, waitS} },
    {0x22, PF1, 50,  {goS, goW, goS, goW, goWa, goW, goWa, goW} },
    {0x24, PF3, 100, {goWa, off1, off1, off1, goWa, off1, off1, off1} },
    {0x24, OFF, 50,  {on1, on1, on1, on1, on1, on1, on1, on1} },
    {0x24, PF1, 50,  {off2, off2, off2, off2, off2, off2, off2, off2} },
    {0x24, OFF, 50,  {on2, on2, on2, on2, on2, on2, on2, on2} },
    {0x24, PF1, 50,  {off3, off3, off3, off3, off3, off3, off3, off3} },
    {0x24, OFF, 50,  {on3, on3, on3, on3, on3, on3, on3, on3} },
    {0x24, PF1, 50,  {goWa, goW, goS, goS, goWa, goW, goS, goS} },   
};

错误消息：

...

TableTrafficLight.c（155）：错误：＃67：预期为“}”

{0x0C，PF1,100，{goW，goW，waitW，waitW，waitW，waitW，waitW，waitW}}，

...

编辑：结果我用分号结束了我的#define语句。哎呀。获得的经验教训。

Answer 1

在关闭大括号之前删除最后一个逗号（删除为突出显示）：

SType FSM[11] = {
    {0x0C, PF1, 100, {goW, goW, waitW, waitW, waitW, waitW, waitW, waitW} },
    {0x14, PF1, 50,  {goW, goW, goS, goS, goWa, goWa, goWa, goWa} },
    {0x21, PF1, 100, {goS, waitS, goS, waitS, waitS, waitS, waitS, waitS} },
    {0x22, PF1, 50,  {goS, goW, goS, goW, goWa, goW, goWa, goW} },
    {0x24, PF3, 100, {goWa, off1, off1, off1, goWa, off1, off1, off1} },
    {0x24, OFF, 50,  {on1, on1, on1, on1, on1, on1, on1, on1} },
    {0x24, PF1, 50,  {off2, off2, off2, off2, off2, off2, off2, off2} },
    {0x24, OFF, 50,  {on2, on2, on2, on2, on2, on2, on2, on2} },
    {0x24, PF1, 50,  {off3, off3, off3, off3, off3, off3, off3, off3} },
    {0x24, OFF, 50,  {on3, on3, on3, on3, on3, on3, on3, on3} },
    {0x24, PF1, 50,  {goWa, goW, goS, goS, goWa, goW, goS, goS} }, //remove this comma  
};

变为：

SType FSM[11] = {
    {0x0C, PF1, 100, {goW, goW, waitW, waitW, waitW, waitW, waitW, waitW} },
    {0x14, PF1, 50,  {goW, goW, goS, goS, goWa, goWa, goWa, goWa} },
    {0x21, PF1, 100, {goS, waitS, goS, waitS, waitS, waitS, waitS, waitS} },
    {0x22, PF1, 50,  {goS, goW, goS, goW, goWa, goW, goWa, goW} },
    {0x24, PF3, 100, {goWa, off1, off1, off1, goWa, off1, off1, off1} },
    {0x24, OFF, 50,  {on1, on1, on1, on1, on1, on1, on1, on1} },
    {0x24, PF1, 50,  {off2, off2, off2, off2, off2, off2, off2, off2} },
    {0x24, OFF, 50,  {on2, on2, on2, on2, on2, on2, on2, on2} },
    {0x24, PF1, 50,  {off3, off3, off3, off3, off3, off3, off3, off3} },
    {0x24, OFF, 50,  {on3, on3, on3, on3, on3, on3, on3, on3} },
    {0x24, PF1, 50,  {goWa, goW, goS, goS, goWa, goW, goS, goS} } 
};

创建结构实例数组[C]

1 个答案: