Path: csiph.com!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Tim Rentsch Newsgroups: comp.lang.c++ Subject: Re: constexpr is really very smart! Date: Sun, 22 Dec 2024 10:33:57 -0800 Organization: A noiseless patient Spider Lines: 17 Message-ID: <865xnbftyi.fsf@linuxsc.com> References: <20241216112808.00003f74@yahoo.com> <86jzbyghdw.fsf@linuxsc.com> <20241218013342.0000518a@yahoo.com> <867c7whol9.fsf@linuxsc.com> <20241218220006.00003f8e@yahoo.com> <86v7vgf3tb.fsf@linuxsc.com> <20241219234549.00001902@yahoo.com> <86r062f0kl.fsf@linuxsc.com> <20241222001456.00007e84@yahoo.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Injection-Date: Sun, 22 Dec 2024 19:33:57 +0100 (CET) Injection-Info: dont-email.me; posting-host="51a4a5f37c195e1c534565157c1e4040"; logging-data="779267"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+6DOzDYyvWuo6KEh/FCLteWbyWnu68e98=" User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux) Cancel-Lock: sha1:Oyzdbi+3RRe8PNL3OpkYG4KT+yk= sha1:HTa2xbpkIdD1T7hoVIK1Z6o4Zk8= Xref: csiph.com comp.lang.c++:121288 Michael S writes: > On Fri, 20 Dec 2024 14:31:54 -0800 > Tim Rentsch wrote: > >> Thank you for that. Sadly I am not able to run it because my >> test environment is lacking _rdtsc(), and I haven't been able >> to find out how to install it. > > Any x86-64 Linux should have _rdtsc() as inline function (or built-in) > defined in x86intrin.h. No installation required. Okay. As it turns out knowing that doesn't help me, but thank you for the info. I'm taking this as a sign from heaven that I should be spending my energies somewhere other than measuring performance.