C99 doesn't need function bodies: VLAs are Turing complete(lemon.rip)

95 pointsby fanf22 anni fa4 comments

lemon.rip

C99 doesn't need function bodies: VLAs are Turing complete

https://lemon.rip/w/c99-vla-tricks/

4 comments

mmaniac2 anni fa

Array parameters are a lie and have always been evil. I'm only more convinced of that now.

stevefan19992 anni fa

but isn't the evaluation order of VLAs depending on the architecture? not sure if it is relevant tho

eska2 anni fa

* I couldn't find anywhere in the standard saying whether this evaluation order is well-defined but it is what clang and gcc do, and luckily, it does not matter for the sake of this article, as we will see shortly.*

knome2 anni fa

this is fantastic.