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This usage of VLAs is once again mandatory for compilers to support, since C23. From Wikipedia: "Variably-modified types (but not VLAs which are automatic varia

This usage of VLAs is once again mandatory for compilers to support, since C23. From Wikipedia: "Variably-modified types (but not VLAs which are automatic variables allocated on the stack) become a mandatory feature".

pjmlp 4y ago
Oh well...
- ynfnehf 4y ago
  At least it is still optional to allow for stack allocated VLAs. Which is the attack vector you mentioned.
- legalcorrection 4y ago
  Tell me, what’s wrong with variably modified types specifically?
  - mananaysiempre 4y ago
    Sizeof, which used to be one of the very few things you could blindly do to an arbitrary (potentially UB-provoking) expression, can now have side effects.