> In practice I dare you to find compiler documentation for each implementation defined behavior. For gcc there is this: https://gcc.gnu.org/onlinedocs/gcc/C-

> In practice I dare you to find compiler documentation for each implementation defined behavior. For gcc there is this: https://gcc.gnu.org/onlinedocs/gcc/C-Implementation.html https://gcc.gnu.org/onlinedocs/gcc/C-Implementation.html No idea how complete it is. Also a lot of stuff is architecture/platform specific, not compiler specific, so you won't find it in the general compiler docs but you have to look at the psABI.