Following through and skimming your links, I cannot find a lot to back up your claims. The latest discussion of lambda in C that I can find is the following document: http://www.open-std.org/jtc1/sc22/wg14/www/docs/n1483.htm

At the very bottom:

> Summary

> The C proposal N1451 provides a new syntax for lambda expressions. While details of the proposal are unclear, it is clear that there are both significant commonalities and significant differences [NOTE: document's title is "Comparing Lambda in C Proposal N1451 and C++ FCD N3092"]. The syntax is in many places a shallow inconsistency. More deeply, the model of reference capture seems inherently incompatible. The N1451 model seems more appropriate to Smalltalk, from whence it originated, than to C/C++. If the C commitee chooses to modify the proposal to be more inline with C++, then syntactic changes to both C and C++ would provide considerable value to working programmers, who often fail to appreciate any differences in approach.

In summary, there seems to be one guy who has invested effort in a proposal, and all I can find is at best mixed reactions to this proposal, inside and outside of WG14.

While the stuff I listed in above comment is all simple or even simplifying the language, and that's what's already integrated in the working draft in the standard.

There are still a couple of years until everything is voted in.

That is how ISO works, one guy writes a paper and then has to champion it.

If you are in an hurry, you can use clang's block extensions, or GCC's version thereof (nested functions).

In any case, C23 isn't K&R C.