Bug 398 – No way to abort compilation in a doubly recursive mixin

This program generates 2^16 local variables called 'val'. Oops. But the problem is, the compiler hangs. It would be better if ^C worked, or even if it just segfaulted! But probably, there just needs to be some check on number of local variables. (BTW, it's *really* cool that this code actually works for smaller numbers of w, eg rubbish!(10).) --------- template rubbish(int w) { static if (w<=0) { int val = 2; } else { mixin rubbish!(w-1) left; mixin rubbish!(w-1) right; } } void main() { mixin rubbish!(15); }

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 [email protected] schrieb am 2006-10-04: > http://d.puremagic.com/issues/show_bug.cgi?id=398 > This program generates 2^16 local variables called 'val'. Oops. But the problem > is, the compiler hangs. It would be better if ^C worked, or even if it just > segfaulted! But probably, there just needs to be some check on number of local > variables. > > (BTW, it's *really* cool that this code actually works for smaller numbers of > w, eg rubbish!(10).) > > --------- > template rubbish(int w) > { > static if (w<=0) { > int val = 2; > } else { > mixin rubbish!(w-1) left; > mixin rubbish!(w-1) right; > } > } > > void main() > { > mixin rubbish!(15); > } Added to DStress as http://dstress.kuehne.cn/run/m/mixin_25_A.d http://dstress.kuehne.cn/nocompile/m/mixin_25_B.d Thomas -----BEGIN PGP SIGNATURE----- iD8DBQFFJgXvLK5blCcjpWoRAotVAJ9X0CWuInG+4dJDIkD/9OIb7Td9KQCfeXlp kSi+etI2JTZkT2e1amaKjVQ= =VrRy -----END PGP SIGNATURE-----

Fixed DMD1.032

Fixed dmd 1.032 and 2.016