我想要一个指向静态分配结构的全局指针。
这个编译
struct sa{
int a, b;
char const* c;
};
struct sa* sap = &(struct sa){42,43,"x"};
但它是合法且可移植的 C，还是我必须做类似的事情？:
static struct sa x = {42,43,"x"};
struct sa* sap2 = &x;
最佳答案
显然，根据 http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1570.pdf , 6.5.2.5 复合文字, 5:
The value of the compound literal is that of an unnamed object initialized by the initializer list. If the compound literal occurs outside the body of a function, the object has static storage duration; otherwise, it has automatic storage duration associated with the enclosing block.
在全局范围内使用是合法的。
谢谢 WhozCraig让我知道构造的名称，以便我可以查找它。 ;)
关于c - 指向静态分配结构的全局指针，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39430200/