Wishlist : compiler improvements

[staalmannen]

Below a wishlist of stuff that would be nice to add to the compiler

• deal with 0x hexadecimal numbers with a decimal point!
• Be able to deal with 0x(hexadecimal)p(2^x) type numbers.
• Variable-length arrays (VLAs)
• a GAS format .s compiler
• C99 compatibility
• compiler support for <complex.h> type functions (like 1.0fi for defining _Complex_I and typeof for tgmath.h)

[staalmannen]

This document outlines missing features for C99 compatibility

https://git.9front.org/plan9front/plan9front/addf2d55bf9bbf090ea26173ac03cfa725bb73cd/sys/src/cmd/cc/c99/raw

[staalmannen]

Something that could be cool for the future of APExp in the compiler space:

https://c9x.me/compile/

https://sr.ht/~mcf/cproc/

[staalmannen]

hex float seems to be solved - Several objects of the musl math library are now successfully compiling.

1477be0

The patch will probably not go upstream since it was vibe coded with claude.ai. It could however serve as inspiration if someone wants to write a proper patch that could be accepted upstream.