Skip to content
  • Home Home Home, current page.
  • Moments Moments Moments, current page.

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @
  • Language: English
    • Bahasa Indonesia
    • Bahasa Melayu
    • Català
    • Čeština
    • Dansk
    • Deutsch
    • English UK
    • Español
    • Filipino
    • Français
    • Hrvatski
    • Italiano
    • Magyar
    • Nederlands
    • Norsk
    • Polski
    • Português
    • Română
    • Slovenčina
    • Suomi
    • Svenska
    • Tiếng Việt
    • Türkçe
    • Ελληνικά
    • Български език
    • Русский
    • Српски
    • Українська мова
    • עִבְרִית
    • العربية
    • فارسی
    • मराठी
    • हिन्दी
    • বাংলা
    • ગુજરાતી
    • தமிழ்
    • ಕನ್ನಡ
    • ภาษาไทย
    • 한국어
    • 日本語
    • 简体中文
    • 繁體中文
  • Have an account? Log in
    Have an account?
    · Forgot password?

    New to Twitter?
    Sign up
RichFelker's profile
Rich Felker
Rich Felker
Rich Felker
@RichFelker

Tweets

Rich Felker

@RichFelker

Yeah, I do @musllibc, FOSS & infosec stuff. But now is not the time for a mostly-/only-tech Twitter feed.

musl-libc.org
Joined March 2014

Tweets

  • © 2018 Twitter
  • About
  • Help Center
  • Terms
  • Privacy policy
  • Cookies
  • Ads info
Dismiss
Previous
Next

Go to a person's profile

Saved searches

  • Remove
  • In this conversation
    Verified accountProtected Tweets @
Suggested users
  • Verified accountProtected Tweets @
  • Verified accountProtected Tweets @

Promote this Tweet

Block

  • Tweet with a location

    You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more

    Your lists

    Create a new list


    Under 100 characters, optional

    Privacy

    Copy link to Tweet

    Embed this Tweet

    Embed this Video

    Add this Tweet to your website by copying the code below. Learn more

    Add this video to your website by copying the code below. Learn more

    Hmm, there was a problem reaching the server.

    By embedding Twitter content in your website or app, you are agreeing to the Twitter Developer Agreement and Developer Policy.

    Preview

    Why you're seeing this ad

    Log in to Twitter

    · Forgot password?
    Don't have an account? Sign up »

    Sign up for Twitter

    Not on Twitter? Sign up, tune into the things you care about, and get updates as they happen.

    Sign up
    Have an account? Log in »

    Two-way (sending and receiving) short codes:

    Country Code For customers of
    United States 40404 (any)
    Canada 21212 (any)
    United Kingdom 86444 Vodafone, Orange, 3, O2
    Brazil 40404 Nextel, TIM
    Haiti 40404 Digicel, Voila
    Ireland 51210 Vodafone, O2
    India 53000 Bharti Airtel, Videocon, Reliance
    Indonesia 89887 AXIS, 3, Telkomsel, Indosat, XL Axiata
    Italy 4880804 Wind
    3424486444 Vodafone
    » See SMS short codes for other countries

    Confirmation

     

    Welcome home!

    This timeline is where you’ll spend most of your time, getting instant updates about what matters to you.

    Tweets not working for you?

    Hover over the profile pic and click the Following button to unfollow any account.

    Say a lot with a little

    When you see a Tweet you love, tap the heart — it lets the person who wrote it know you shared the love.

    Spread the word

    The fastest way to share someone else’s Tweet with your followers is with a Retweet. Tap the icon to send it instantly.

    Join the conversation

    Add your thoughts about any Tweet with a Reply. Find a topic you’re passionate about, and jump right in.

    Learn the latest

    Get instant insight into what people are talking about now.

    Get more of what you love

    Follow more accounts to get instant updates about topics you care about.

    Find what's happening

    See the latest conversations about any topic instantly.

    Never miss a Moment

    Catch up instantly on the best stories happening as they unfold.

    1. Rich Felker‏ @RichFelker Sep 2

      Why does gcc not have a warning option for &x+k where x is an identifier or result of . or -> operator and k!=0,1 (!=0 if dereferenced)?

      1 reply 0 retweets 2 likes
      Show this thread
    2. Rich Felker‏ @RichFelker Sep 2

      Oops, it does. -Warray-bounds. It's even included in -Wall and I had it on. Unfortunately it only works at -O2 and higher (-ftree-vrp) and I had -Os...

      1 reply 0 retweets 2 likes
      Show this thread
    3. Rich Felker‏ @RichFelker Sep 2

      This is probably going to be the deciding factor that convinces me to kill the current musl default path-specific -Os/-O3 config and use -O2 by default for everything. Broken warnings are not fun.

      1 reply 0 retweets 0 likes
      Show this thread
    4. Rich Felker‏ @RichFelker Sep 2

      Hm, nope. -Os includes it too. And it works on a minimal test case but not the case that I hit in real code in musl...

      2 replies 0 retweets 1 like
      Show this thread
    5. Rich Felker‏ @RichFelker Sep 2

      And here's the resulting bug report: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87192 …

      1 reply 0 retweets 0 likes
      Show this thread
    6. brouhaha‏ @brouhaha Sep 3
      Replying to @RichFelker

      Couldn't you just use an actual high level language, instead of C?

      2 replies 0 retweets 0 likes
    7. Rich Felker‏ @RichFelker Sep 3
      Replying to @brouhaha

      C is a high level language and even admits memory-safe implementations, and there are really few if any others that admit explicit-storage implementations.

      1 reply 0 retweets 0 likes
    8. brouhaha‏ @brouhaha Sep 3
      Replying to @RichFelker

      I don't think it can be proven that a memory-safe C compiler/runtime implementation is even possible, let alone practical to construct or usable. Certainly it's possible to do a good bit better than GCC does, but that's not saying a lot.

      1 reply 0 retweets 0 likes
    9. brouhaha‏ @brouhaha Sep 3
      Replying to @brouhaha @RichFelker

      A trivial example: in C, as soon as your program adds two arbitrary signed integers (perhaps read from input files), your program is not memory-safe.

      1 reply 0 retweets 0 likes
    10. Rich Felker‏ @RichFelker Sep 3
      Replying to @brouhaha

      That has nothing to do with memory safety; it's just UB and an implementation can make it go away by defining the result.

      1 reply 0 retweets 0 likes
      Rich Felker‏ @RichFelker Sep 3
      Replying to @RichFelker @brouhaha

      The hard UBs to eliminate are data races, use after free, aliasing issues.

      12:48 AM - 3 Sep 2018
      0 replies 0 retweets 0 likes

      Loading seems to be taking a while.

      Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.

        Promoted Tweet

        false

        • © 2018 Twitter
        • About
        • Help Center
        • Terms
        • Privacy policy
        • Cookies
        • Ads info