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This [1] explains how to create them using nested functions. Near the end is a quick blurb about the implementation which is probably why c++ doesn’t do it that

by swiley 7y ago

This [1] explains how to create them using nested functions. Near the end is a quick blurb about the implementation which is probably why c++ doesn’t do it that way. [1] https://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html https://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html

saagarjha 7y ago
Oh no, nested functions are a terrible, insecure hack that are far too verbose to be ergonomic closures :(
- swiley 7y ago
  Of course, that’s why I said it’s good for hacking. Although I’m not sure I agree about the “ergonomic” thing.
amiga_500 7y ago
Wouldn't you just use a lambda nowadays?
- im3w1l 7y ago
  Not in C you wouldn't.
  - saagarjha 7y ago
    You can with Clang’s blocks extension: https://en.wikipedia.org/wiki/Blocks_(C_language_extension) https://en.wikipedia.org/wiki/Blocks_(C_language_extension)
  - amiga_500 7y ago
    Sure, but the parent post was saying they didn't like nested function handling in c++.
    - MiroF 7y ago
      Agreed - this feature seems useless in modern C++
    - im3w1l 7y ago
      Nested functions don't exist in C++ (except for lambdas).