关于REAL Expert结构初始化的问题 [英] Question About Structure Initialization For REAL Expert
问题描述
好吧，让我们说有一个功能菜单结构声明
就像这样（因为我基本上这样做）：
typedef struct function_item {
char * descrip;
void（* function）（void）;
} t_function_item;
typedef struct function_menu {
unsigned short num_items;
unsigned short default_item;
char * title_prompt;
t_function_item * function_items;
} t_function_menu;
现在有时候（实际上几乎所有时间）我想把它初始化为
字面值。所以我就是这样做的（有点）本地函数
选择
a函数并运行它（代码没有说明问题省略）：
void my_function_1（void）{
}
void my_function_2（void）{
}
unsigned short run_function_menu（t_function_menu * function_menu）{
}
void select_function（void ）{
静态t_function_menu my_function_menu =
{0,0，我的函数菜单};
static t_function_item my_function_items [] = {
{" My Function 1" my_function_1}，
{" My Function 2" my_function_2}，
{NULL，NULL } $;
my_function_menu.function_items = my_function_items;
run_function_menu（& my_function_menu）;
}
我的问题是：出于某种原因，如果我尝试初始化菜单
结构一下子，在我看来似乎是一个合法的
初始化，如下所示：
static t_function_menu my_function_menu =
{0,0，" My Function Menu" ;，（t_function_item []）{
{" My Function 1"，my_function_1}，
{" My Function 2" my_function_2}，
{NULL，NULL}}};
我只是得到了一堆语法错误，但对我来说，上面似乎是
功能上与我实际需要做的相同，如
中所示，select_function（）示例让事情发挥作用...为什么我会获得错误，以及
获取错误，以及有没有办法在一次初始化分配中初始化这样的结构
？我在这里错过了什么？
---
William Ernest Reid
Bill Reid写道：
< snip>
>
我只是得到了一堆语法错误，但对我来说，上面似乎
在功能上与我实际需要做的完全相同，如
select_function（）示例让事情发挥作用...为什么我得到了错误的
，并且有一些方法可以在一次初始化赋值中初始化这样的结构
？我在这里缺少什么？
有什么错误？
代码看起来很好。您使用的是C99编译器吗？
-
Ian Collins。
7月20日，3：43 am，Ian Collins< ian-n ... @ hotmail.comwrote：
Bill Reid写道：
< snip>
我刚收到一堆语法错误，但对我来说，以上似乎是功能性的b / b
与我实际需要做的相同，如
中所示，select_function（）示例让事情发挥作用...为什么我要获得错误，以及
有没有办法在一次初始化赋值中初始化这样的结构
？我在这里错过了什么？
有什么错误？
代码看起来很好。您使用的是C99编译器吗？
不要给巨魔喂食。
vi ****** @ gmail.com 写道：
7月20日凌晨3:43 ，Ian Collins< ian-n ... @ hotmail.comwrote：
不要给巨魔喂食。
对不起，周日下午很安静！
-
Ian Collins。
OK, let''s say that have a function menu structure declaration
like this (since I basically do):
typedef struct function_item {
char *descrip;
void(*function)(void);
} t_function_item;
typedef struct function_menu {
unsigned short num_items;
unsigned short default_item;
char *title_prompt;
t_function_item *function_items;
} t_function_menu;
Now sometimes (really just about all the time) I want to initialize it to
literal values. So this is how I do it (sort of) for a local function that
selects
a function and runs it (code that doesn''t illustrate the question elided):
void my_function_1(void) {
}
void my_function_2(void) {
}
unsigned short run_function_menu(t_function_menu *function_menu) {
}
void select_function(void) {
static t_function_menu my_function_menu=
{0,0,"My Function Menu"};
static t_function_item my_function_items[]={
{"My Function 1",my_function_1},
{"My Function 2",my_function_2},
{NULL,NULL}};
my_function_menu.function_items=my_function_items;
run_function_menu(&my_function_menu);
}
My question is: for some reason if I try to initialize the menu
structure in one fell swoop, with what seems to me to be a legal
initialization, like this:
static t_function_menu my_function_menu=
{0,0,"My Function Menu",(t_function_item []){
{"My Function 1",my_function_1},
{"My Function 2",my_function_2},
{NULL,NULL}}};
I just get a bunch of syntax errors, but to me, the above seems
to be functionally identical to what I actually have to do as shown in
the select_function() example to get the thing to work...why am I
getting the errors, and IS there some way to initialize such a structure
in one initialization assignment? What am I missing here?
---
William Ernest Reid
Bill Reid wrote:
<snip>
>
I just get a bunch of syntax errors, but to me, the above seems
to be functionally identical to what I actually have to do as shown in
the select_function() example to get the thing to work...why am I
getting the errors, and IS there some way to initialize such a structure
in one initialization assignment? What am I missing here?
What errors?
The code looks fine. Are you using a C99 compiler?
--
Ian Collins.
On Jul 20, 3:43 am, Ian Collins <ian-n...@hotmail.comwrote:Bill Reid wrote:
<snip>
I just get a bunch of syntax errors, but to me, the above seems
to be functionally identical to what I actually have to do as shown in
the select_function() example to get the thing to work...why am I
getting the errors, and IS there some way to initialize such a structure
in one initialization assignment? What am I missing here?
What errors?
The code looks fine. Are you using a C99 compiler?Don''t feed the troll.
vi******@gmail.com wrote:On Jul 20, 3:43 am, Ian Collins <ian-n...@hotmail.comwrote:
Don''t feed the troll.Sorry, quiet Sunday afternoon!
--
Ian Collins.
这篇关于关于REAL Expert结构初始化的问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
