2

我想做的只是初始化一个结构的实例。结构在这里定义：

typedef struct Rectangle 
{
tName Name; /* name of the rectangle */
struct Rectangle * binSon[2];
int Center[2];
int Length[2]; /* distance to the boarder of the rectangle */
int Label;
}Rectangle;

以及我如何初始化它如下所示：

Rectangle * binSon[2];
binSon[0] = NULL;
binSon[1] = NULL;

int Center[2];  
int Length[2];

Center[0] = 0;
Center[1] = 0;
Length[0] = 5;
Length[1] = 5;

Rectangle world = {"World", binSon, Center, Length, 0};

在最后一行，当我编译程序时，它会向我报告以下警告：

mx_cif_ds_manager.c:52:2: warning: initialization makes integer from pointer without a cast [enabled by default]
mx_cif_ds_manager.c:52:2: warning: (near initialization for 'world.Name[0]') [enabled by default]
mx_cif_ds_manager.c:52:2: warning: initialization makes integer from pointer without a cast [enabled by default]
mx_cif_ds_manager.c:52:2: warning: (near initialization for 'world.Name[1]') [enabled by default]
mx_cif_ds_manager.c:52:2: warning: initialization makes integer from pointer without a cast [enabled by default]
mx_cif_ds_manager.c:52:2: warning: (near initialization for 'world.Name[2]') [enabled by default]
mx_cif_ds_manager.c:52:2: warning: initialization makes integer from pointer without a cast [enabled by default]
mx_cif_ds_manager.c:52:2: warning: (near initialization for 'world.Name[3]') [enabled by default]

不知道这段程序出了什么问题，想知道是否有人有任何想法或建议可以帮助我改进这段代码。什么是初始化结构的更温和的方法？

谢谢

======更新======

感谢您的帮助，但是如果我想使用变量来初始化结构怎么办。在这种情况下我是否必须分配内存空间？

tName 定义在这里

typedef char tName[MAX_NAME_LEN + 1];
4

3 回答 3

15

这应该有效：

Rectangle world = {"World", {NULL, NULL}, {0, 0}, {5, 5}, 0};
于 2012-09-25T16:59:49.060 回答
4

简单得多：

Rectangle world = { "World", { NULL, NULL }, { 0, 0 }, { 5, 5 }, 0 };
于 2012-09-25T17:00:13.403 回答
1

要扩展基思的答案，如果您愿意，您也可以这样做来使用您的变量。请注意，这仅在您在函数内时有效。

void foo(void)
{
    Rectangle world = {"World", {binSon[0], binSon[1]}, {Center[0], Center[1]}, {Length[0], Length[1]}, 0};
}
于 2012-09-25T17:19:13.933 回答