我正在为嵌入式系统实验室创建一个有限状态机。编译器(我使用ARM的Kiel)抱怨我试图声明一个结构体的实例数组。我做错了什么?
My code (part of):
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} },
};
错误信息:
…
tabletraffic .c(155): error: #67: expected a "}"
{0x0C, PF1, 100, {goW, goW, waitW, waitW, waitW, waitW, waitW, waitW}},
…
编辑:原来我用分号结束了我的#define
语句。哦。教训。
去掉右括号前的最后一个逗号(去掉高亮显示的部分):
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
};
就变成:
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} }
};