https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85515
--- Comment #3 from David Malcolm <dmalcolm at gcc dot gnu.org> ---
Some examples of using the leaky abstractions, adapted from the video:
int main ()
{
auto lambda = [val = 2](){ return val; };
//lambda.__val = 4;
return lambda();
}
On uncommenting the assignment, GCC generates a return of 4, rather than 2.
int test ()
{
int arr[] = {1, 2, 3, 4, 5};
int sum = 0;
for (const auto v: arr) {
sum += v;
//__for_begin = __for_end;
}
return sum;
}
On uncommenting the assignment, GCC generates an infinite loop.
