C meeting is over. C23 added:

Post by rightbyte » Sat, Feb 19, 2022, 12:40 PM UTC

raptorfactor wrote: post #49

WithinReason wrote: post #40

Earlier quoted context omitted.

Languages exist that compile to C which gives them many of the above advantages and more, so why choose C over them?

Having never used such a language, I'm curious, what's the debugging experience like? Can I source level step the application in the original language or do I have to debug the generated C?

Post by pkrumins » Sat, Feb 19, 2022, 12:45 PM UTC

drran wrote: post #108

pkrumins wrote: post #99

C is the only sane language left. It never changes and it lets us write code that just works. We can focus on getting things done and shipping rather than learning new features and Googling compiler errors. Learn once, ship forever.

Majority of CVE's are because of C memory model, which is fixed in modern languages. C memory model is the constant source of vulnerabilities, thus it better to write new code in a memory safe language, like Rust.

Post by zx2c4 » Sat, Feb 19, 2022, 12:46 PM UTC

mojuba wrote: post #60

dgrunwald wrote: post #54

Earlier quoted context omitted.

What's being removed in C23 is the ancient K&R syntax for function definitions: int max(a, b) int a, b; { return a>b?a:b; } My understanding is that C23 does not change the meaning of function declarations. So "void foo();" remains a declaration of a function accepting an unknown number of parameters.

According to the OP tweet though, `foo()` is now a function that takes no arguments.

    zx2c4@thinkpad /tmp $ cat a.c
    int blah()
    {
            return 7;
    }
    
    int main(int argc, char *argv[])
    {
            return blah(argc);
    }
    zx2c4@thinkpad /tmp $ gcc -std=c17 a.c
    zx2c4@thinkpad /tmp $ gcc -std=c2x a.c
    a.c: In function ‘main’:
    a.c:8:16: error: too many arguments to function ‘blah’
        8 |         return blah(argc);
          |                ^~~~
    a.c:1:5: note: declared here
        1 | int blah()
          |     ^~~~

Post by pkrumins » Sat, Feb 19, 2022, 12:47 PM UTC

wffurr wrote: post #112

pkrumins wrote: post #99

C is the only sane language left. It never changes and it lets us write code that just works. We can focus on getting things done and shipping rather than learning new features and Googling compiler errors. Learn once, ship forever.

...except it just changed. And you will be forever left writing insecure memory unsafe code.

Post by messe » Sat, Feb 19, 2022, 12:48 PM UTC

suprjami wrote: post #70

mojuba wrote: post #60

Earlier quoted context omitted.

According to the OP tweet though, `foo()` is now a function that takes no arguments.

That's a different thing. That's implied `foo(void)`.