我一直在研究这个问题,试图找出导致这些错误的原因,但到目前为止我一无所获。我有这个功能:
struct token scanToken(struct matrix refTable){
struct token send;
int counter = 0;
int currState = refTable.start;
while (1) {
printf("%d ", currState);
char c = getchar();
send.buffer[counter] = c;
int class = classifyChar(c);
char result = refTable.grid[class][currState].action;
currState = refTable.grid[class][currState].nextState;
if (currState = 99){
findEnd();
send.recrej = 'd';
return send;
}
else if (currState = refTable.accept){
if (c == EOF){
send.isEnd = 't';
}
else{
send.isEnd = 'f';
send.recrej = 'a';
}
}
++counter;
}
return send;
}
它与以下头文件相匹配:
struct token {
char buffer[512];
char recrej;
char isEnd;
};
void findEnd(void);
struct token scanToken(struct matrix refTable);
int classifyChar(char c);
这段代码目前在我的 main 函数的这段代码中使用:
struct matrix table;
table = buildMatrix(argv[1]);
char c;
int class;
struct token found;
found = scanToken(table);
while(found.isEnd != 't'){
if (found.recrej == 'a'){
printf("recognized '%s'\n", found.buffer);
}
else {
printf("rejected\n");
}
found = scanToken(table);
}
矩阵结构在另一个头文件中进行原型化,该头文件包含在scanner.c文件(如图所示)和tokenize.c文件(如图所示)中。但是,这会产生以下警告和错误。
In file included from scanner.c:10:0:
scanner.h:16:31: warning: 'struct matrix' declared inside parameter list [enabled by default]
struct token scanToken(struct matrix refTable);
^
scanner.h:16:31: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]
scanner.c:60:14: error: conflicting types for 'scanToken'
struct token scanToken(struct matrix refTable){
^
In file included from scanner.c:10:0:
scanner.h:16:14: note: previous declaration of 'scanToken' was here
struct token scanToken(struct matrix refTable);
我已经搜索了很长一段时间,并尝试了多种方式重写内容,但结果都是相同的。任何帮助将不胜感激。谢谢。