5 ms·

Paging walter bright

by IncreasePosts 4mo ago

glouwbug 4mo ago
C's biggest mistake. But in other news most don't know that a[3] == 3[a]
- throwaway27448 4mo ago
  Even more irrelevant than the array type
- parlortricks 4mo ago
  I didn't understand why a[3] == 3[a], but i found this stackoverflow that explains it. https://stackoverflow.com/a/16163840 https://stackoverflow.com/a/16163840 In C a[i] is converted to *(a+i) internally. i[a] is converted to *(i+a). Array names also act as pointers in c. so (a+i) or (i+a) give an address (using pointer arithmetic) that is dereferenced using
  - parlortricks 4mo ago
    In C a[i] is converted to *(a+i) internally. i[a] is converted to *(i+a). Array names also act as pointers in c. so (a+i) or (i+a) give an address (using pointer arithmetic) that is dereferenced using *
- glouwbug 4mo ago
  https://www.digitalmars.com/articles/C-biggest-mistake.html https://www.digitalmars.com/articles/C-biggest-mistake.html
WalterBright 4mo ago
At your service! D fixed it, and I'm sorry C users have suffered as the array-to-pointer decay blasted their kingdom. Fixing it in C is easy and should be the #1 priority.
- aa-jv 4mo ago
  At this point, C's #1 priority is not breaking things in existing implementations, though, Walter...
  - WalterBright 4mo ago
    My proposal does not break existing code. https://www.digitalmars.com/articles/C-biggest-mistake.html https://www.digitalmars.com/articles/C-biggest-mistake.html
    - aa-jv 4mo ago
      Yes it does: >All it needs is a little new syntax
      - bmn__ 4mo ago
        You seem to be under the impression that adding new syntax necessarily breaks existing code. But that just isn't true. If you can't fathom how it's done, then look at the use VERSION statement in Perl.
        aa-jv 4mo ago
        It doesn't just break existing code, it breaks existing tooling for checking syntax .. (Perl is hardly a decent model.)
        bmn__ 4mo ago
        This answer that is both so stupendously confident and wrong is only possible if you in actuality decided to not read and understand how this problem is solved in Perl.

Paging walter bright

glouwbug 4mo ago

C's biggest mistake. But in other news most don't know that a[3] == 3[a]

throwaway27448 4mo ago
Even more irrelevant than the array type
parlortricks 4mo ago
I didn't understand why a[3] == 3[a], but i found this stackoverflow that explains it. https://stackoverflow.com/a/16163840 https://stackoverflow.com/a/16163840 In C a[i] is converted to *(a+i) internally. i[a] is converted to *(i+a). Array names also act as pointers in c. so (a+i) or (i+a) give an address (using pointer arithmetic) that is dereferenced using
- parlortricks 4mo ago
  In C a[i] is converted to *(a+i) internally. i[a] is converted to *(i+a). Array names also act as pointers in c. so (a+i) or (i+a) give an address (using pointer arithmetic) that is dereferenced using *
glouwbug 4mo ago
https://www.digitalmars.com/articles/C-biggest-mistake.html https://www.digitalmars.com/articles/C-biggest-mistake.html

WalterBright 4mo ago

At your service! D fixed it, and I'm sorry C users have suffered as the array-to-pointer decay blasted their kingdom. Fixing it in C is easy and should be the #1 priority.

aa-jv 4mo ago
At this point, C's #1 priority is not breaking things in existing implementations, though, Walter...
- WalterBright 4mo ago
  My proposal does not break existing code. https://www.digitalmars.com/articles/C-biggest-mistake.html https://www.digitalmars.com/articles/C-biggest-mistake.html
  - aa-jv 4mo ago
    Yes it does: >All it needs is a little new syntax
    - bmn__ 4mo ago
      You seem to be under the impression that adding new syntax necessarily breaks existing code. But that just isn't true. If you can't fathom how it's done, then look at the use VERSION statement in Perl.
      - aa-jv 4mo ago
        It doesn't just break existing code, it breaks existing tooling for checking syntax .. (Perl is hardly a decent model.)
        bmn__ 4mo ago
        This answer that is both so stupendously confident and wrong is only possible if you in actuality decided to not read and understand how this problem is solved in Perl.