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| Code Block | ||
|---|---|---|
| ||
jmp_buf buf;
void f(void) {
volatile int i = 10;
if (setjmp(buf) == 0) {
printf("i = %d\n", i);
} else {
printf("longjmp: i = %d\n", i);
exit(0);
}
h();
return;
}
void h(void) {
char b[16];
memset(b, 0, 16);
longjmp(buf, 1);
}
|
Implementation Details
In this example there is no risk of overwriting i because the stackframe of f() is still on the stack, so when h is invoked, the two stackframes will not overlap.
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