Type names are nice; Perfect choice for the in-built func macros (like min); Len -- love it. Named boolean operators -- might be a bit much but go for it; Ternaries are illegible so you can only improve them; Not completely sold on all your loop definitions but some make sense to me; Resource tracking is impressive; The for... look a bit ugly -- could probably call it something else.

All in all: quite a solid attempt. I'll give you 8/10 for the design of this. The way you sketched this out in C using macros is really elegant. This actually looks like good code. Would I use it? It's a new language and I like C already. It could help people learn C and think about language design. Since the way you've done this is very clear.