如何初始化嵌套数组
初始化以下2级嵌套数组的正确语法是什么？
z3 src # cat tc.c #include typedef struct level1_t { char var[15]; int value; } level1_t; typedef struct level2_t { level1_t data[3]; } level2_t; level2_t level2[1] = { [0]={ [0]={"one",1}, [1]={"two",2}, [2]={"three",3} } }; int main() { printf("%s\n",level2[0].data[1].var); } z3 src # gcc -ggdb -o tc tc.c tc.c:14:4: error: array index in non-array initializer tc.c:14:4: error: (near initialization for 'level2[0]') tc.c:15:4: error: array index in non-array initializer tc.c:15:4: error: (near initialization for 'level2[0]') tc.c:15:4: error: extra brace group at end of initializer tc.c:15:4: error: (near initialization for 'level2[0]') tc.c:15:4: warning: excess elements in struct initializer tc.c:15:4: warning: (near initialization for 'level2[0]') tc.c:16:4: error: array index in non-array initializer tc.c:16:4: error: (near initialization for 'level2[0]') tc.c:16:4: error: extra brace group at end of initializer tc.c:16:4: error: (near initialization for 'level2[0]') tc.c:16:4: warning: excess elements in struct initializer tc.c:16:4: warning: (near initialization for 'level2[0]') z3 src # 更改
level2_t level2[1] = { [0]={ [0]={"one",1}, [1]={"two",2}, [2]={"three",3} } };
至
level2_t level2[1] = { [0].data = { [0]={"one",1}, [1]={"two",2}, [2]={"three",3} } };
现在，您正在尝试将结构初始化为数组，而您需要初始化data字段。
正如你在评论中提到的，如何在没有索引的情况下做同样的事情：
level2_t level2[] = { { .data = { {"one", 1}, {"two", 2}, {"three", 3} } } };
level2_t level2 = { {"one, 1}, {"two, 2}, {"three", 3} };