如何初始化无符号字符数组？

Question

我真正想要实现的是一个动态字节数组模式的数组，当我缓冲二进制文件时，我可以使用它作为模式搜索器。但现在我先从基础开始。我有以下代码，它是基于在StackOverflow上找到的示例。

如何在C中初始化多维字符数组？

typedef unsigned char BYTE;

int main()
{
    BYTE *p[2][4] = {
        {0x44,0x58,0x54,0x31},
        {0x44,0x58,0x54,0x00}
    };

    return 0;
}

我使用mingw32编译它，用于Windows操作系统。

D:\> gcc example.c -o example.exe

当我尝试编译时，出现以下警告。

example.c: In function 'main':
example.c:6:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:6:3: warning: (near initialization for 'p[0][0]') [enabled by default]
example.c:6:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:6:3: warning: (near initialization for 'p[0][1]') [enabled by default]
example.c:6:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:6:3: warning: (near initialization for 'p[0][2]') [enabled by default]
example.c:6:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:6:3: warning: (near initialization for 'p[0][3]') [enabled by default]
example.c:7:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:7:3: warning: (near initialization for 'p[1][0]') [enabled by default]
example.c:7:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:7:3: warning: (near initialization for 'p[1][1]') [enabled by default]
example.c:7:3: warning: initialization makes pointer from integer without a cast [enabled by default]
example.c:7:3: warning: (near initialization for 'p[1][2]') [enabled by default]

我不理解这个警告的本质。我该如何解决它？谢谢。

- redsolar

Answer 1

将BYTE *p[2][4]中的*删除：

BYTE p[2][4] = {
    {0x44,0x58,0x54,0x31},
    {0x44,0x58,0x54,0x00}
};

你希望得到一个多维的char数组： BYTE p[2][4]，而不是一个多维的char指针数组。

- cnicutar

---

哇，那个修复真的很容易。我很好奇，为什么您要删除指针，当我链接的示例中使用指针来执行与我所需非常相似的操作？ - redsolar

@redsolar 在那段代码中，最内层的元素本身就是一个数组（“00”）。 - cnicutar

哦，我现在明白了。感谢您澄清并感谢您的回答。非常感谢。 - redsolar