lifetime of compound literal

[William Ahern]

I can't figure out what the lifetime of a compound literal is; is it valid
for the function or only for the block. For instance, is the following
okay?

struct example {
char *str;
};

void func(void) {
struct example *e;

do {
e = &(struct example){};
e->str = (char []){ "hello world!" };
} while(0);

/* Is e undefined now? */

printf("%s\n",e->str);

}

TIA,

Bill

[resembelkanix]

It should have the lifetime of the function func in this case.

[Christian Kandeler]

William Ahern wrote:

I can't figure out what the lifetime of a compound literal is; is it valid
for the function or only for the block.

From the Standard:
" 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."

So I don't think you can count on it being valid for the lifetime of the
whole function.
Christian