NotePublic/Software/Development/Language/C/GCC_扩展_数组初始化.md

# GCC 扩展 之 数组初始化

* 示例 1：

```cpp
#include <stdio.h>

int array[10] =
{
    [0 ... 9] = 0,
    [8] = 8,
    [2 ... 2] = 2,
    [5 ... 7] = 5
};

int main()
{
    int i = 0;
  
    for (i = 0; i < 10; i++)
        printf("%d/n", array[i]);
    return 0;
}
```

* 示例 2：

```cpp
#include <stdio.h>
struct StObErrorStringMap
{
    const char *jdbc_state;
    const char *odbc_state;
};

struct StObErrorStringMap arr[10] =
{
    [0 ...9] = {(const char*)"HY000", (const char*)"S1000"},
    [1] = { (const char*)"HY001", (const char*)"S1000" },
};

int main()
{
    int i = 0;

    for (i = 0; i < 10; i++)
        printf("%s\n", arr[i].jdbc_state);
    return 0;
}
```