此问题在此处已有答案：

Returning a pointer to a literal (or constant) character array (string)（3个答案）
Lifetime of a string literal returned by a function（5个回答）
Is it safe to return const char * that was assigned string literal from function?（1个答案）
15天前关闭
例如：

static const char * color_to_str(enum Color color) {
    switch (color) {
       case COLOR_RED:
           return "RED";
       case COLOR_BLUE:
           return "BLUE";
       default:
           return "UNKNOWN";
    }
}

static void do_something() {
   printf("The color is %s\n", color_to_str(COLOR_RED));
}

字符串
返回一个指向这些字符串字面量的指针是危险的吗？这种方法有什么问题？