C语言 C 编译错误：数组类型具有不完整的元素类型
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C Compile Error: array type has incomplete element type
提问by JonAthan LAm
#include <stdio.h>
typedef struct
{
int num ;
} NUMBER ;
int main(void)
{
struct NUMBER array[99999];
return 0;
}
I'm getting a compile error:
我收到编译错误：
error: array type has incomplete element type
I believe the problem is that I'm declaring the array of struct incorrectly. It seems like that's how you declare it when I looked it up.
我相信问题在于我错误地声明了结构数组。当我查到它时，这似乎就是你声明它的方式。
回答by haccks
struct NUMBER array[99999];
should be
应该
NUMBER array[99999];
because you already typedefed your struct.
因为你已经typedef编辑了你的结构。
EDIT: As OP is claiming that what I suggested him is not working, I compiled this test code and it is working fine:
编辑：由于 OP 声称我建议他的内容不起作用，我编译了此测试代码并且运行正常：
#include <stdio.h>
typedef struct
{
int num ;
} NUMBER ;
int main(void)
{
NUMBER array[99999];
array[0].num = 10;
printf("%d", array[0].num);
return 0;
}
See the running code.
查看运行代码。
回答by glglgl
You have
你有
typedef struct
{
int num ;
} NUMBER ;
which is a shorthand for
这是一个简写
struct anonymous_struct1
{
int num ;
};
typedef struct anonymous_struct1 NUMBER ;
You have now two equivalent types:
您现在有两种等效类型：
struct anonymous_struct1
NUMBER
You can use them both, but anonymous_struct1is in the structnamespace and must always be preceded with structin order to be used. (That is one major difference between C and C++.)
您可以同时使用它们，但它们anonymous_struct1位于struct命名空间中，并且必须始终以 开头struct才能使用。（这是 C 和 C++ 之间的主要区别之一。）
So either you just do
所以要么你只是做
NUMBER array[99999];
or you define
或者你定义
typedef struct number
{
int num ;
} NUMBER ;
or simply
或者干脆
struct number
{
int num ;
};
and then do
然后做
struct number array[99999];
