我正在尝试在结构中使用枚举,但出现以下错误:
union.cpp:27:21: error: ‘DOLLAR’ was not declared in this scope
book.currency = DOLLAR;
^
这是我的代码:
struct shelf{
char title[50];
char author[50];
union {
float dollars;
int yens;
};
enum {
DOLLAR = 1, YEN
} currency;
} book;
int main () {
strcpy(book.title,"book 1");
strcpy(book.author, "author 1");
book.dollars = 100;
book.currency = DOLLAR;
cout << book.currency;
return 0;
}