ohav chochmah <philomath868@xxxxxxxxx> writes: > #define HIDDEN "\0this string starts with a NUL" > ... > AFAICT, the puts and printf are both no-ops, as the C-string stops > before it starts. yet when doing 'gcc -S tst.c -O2 -march=native' or > even 'gcc -S tst.c -O3 -march=native', GCC generates the following: > ... > in short, the printf was removed but not the puts. which left me wondering why? You are describing an optimization in which GCC looks in constant string literals passed to puts and truncates them at \0. Nobody has implemented that optimization. It sounds like it would affect very very very few programs, so I'm not sure why anybody would bother to implement it. If anything I think it would be more useful to have a warning. But either way I don't think it's worth it. Ian
