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andie :oh_no_bubble:TIL: C array subscript operators are handled in such a way that `letters[i]` is equivalent to `*(letters + i)` and because addition is commutative, that expression is identical to `*(i + letters)`, which means that `i[letters]` is the same as `letters[i]`.``` <a href="https://tech.lgbt/tags/include" class="mention hashtag" rel="nofollow noopener" target="_blank">#include</a> <stdio.h> <a href="https://tech.lgbt/tags/include" class="mention hashtag" rel="nofollow noopener" target="_blank">#include</a> <stddef.h>int main() { char letters[3] = "abc"; size_t i = 2; printf("letters: %p\n", (void *)&letters); printf("i[letters] (%p): %c\n", (void*)&(i[letters]), i[letters]); printf("letters[i] (%p): %c\n", (void*)&(letters[i]), letters[i]); return 0; } ```Which outputs: ``` letters: 0x7ffc68ec7bb9 i[letters] (0x7ffc68ec7bbb): c letters[i] (0x7ffc68ec7bbb): c ```Mind blown... :neofox_floof_explode: <a href="https://tech.lgbt/tags/til" class="mention hashtag" rel="nofollow noopener" target="_blank">#til</a> <a href="https://tech.lgbt/tags/clang" class="mention hashtag" rel="nofollow noopener" target="_blank">#clang</a> <a href="https://tech.lgbt/tags/pointers" class="mention hashtag" rel="nofollow noopener" target="_blank">#pointers</a> <a href="https://tech.lgbt/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a>

Paul Houle👇 Falsehoods programmers believe about null pointers<a href="https://purplesyringa.moe/blog/falsehoods-programmers-believe-about-null-pointers/" rel="nofollow noopener" translate="no" target="_blank">https://purplesyringa.moe/blog/falsehoods-programmers-believe-about-null-pointers/</a><a href="https://mastodon.social/tags/programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#programming</a> <a href="https://mastodon.social/tags/software" class="mention hashtag" rel="nofollow noopener" target="_blank">#software</a> <a href="https://mastodon.social/tags/pointers" class="mention hashtag" rel="nofollow noopener" target="_blank">#pointers</a> <a href="https://mastodon.social/tags/zero" class="mention hashtag" rel="nofollow noopener" target="_blank">#zero</a> <a href="https://mastodon.social/tags/null" class="mention hashtag" rel="nofollow noopener" target="_blank">#null</a> <a href="https://mastodon.social/tags/errors" class="mention hashtag" rel="nofollow noopener" target="_blank">#errors</a> <a href="https://mastodon.social/tags/billiondollarmistake" class="mention hashtag" rel="nofollow noopener" target="_blank">#billiondollarmistake</a>

André Machado :debian:Discover the Unique World of PUNKX.org Card GamesPUNKX.org is a hub for intellectually stimulating and entertaining card games, perfect for those who love programming, problem-solving, or just a good challenge.Read More: <a href="https://machaddr.substack.com/p/discover-the-unique-world-of-punkxorg" rel="nofollow noopener" target="_blank">https://machaddr.substack.com/p/discover-the-unique-world-of-punkxorg</a><a href="https://mastodon.sdf.org/tags/Programming" class="mention hashtag" rel="nofollow noopener" target="_blank">#Programming</a> <a href="https://mastodon.sdf.org/tags/Cards" class="mention hashtag" rel="nofollow noopener" target="_blank">#Cards</a> <a href="https://mastodon.sdf.org/tags/Game" class="mention hashtag" rel="nofollow noopener" target="_blank">#Game</a> <a href="https://mastodon.sdf.org/tags/Pointers" class="mention hashtag" rel="nofollow noopener" target="_blank">#Pointers</a> <a href="https://mastodon.sdf.org/tags/Encode" class="mention hashtag" rel="nofollow noopener" target="_blank">#Encode</a> <a href="https://mastodon.sdf.org/tags/Decode" class="mention hashtag" rel="nofollow noopener" target="_blank">#Decode</a> <a href="https://mastodon.sdf.org/tags/Punkx" class="mention hashtag" rel="nofollow noopener" target="_blank">#Punkx</a> <a href="https://mastodon.sdf.org/tags/UNIX" class="mention hashtag" rel="nofollow noopener" target="_blank">#UNIX</a> <a href="https://mastodon.sdf.org/tags/Linux" class="mention hashtag" rel="nofollow noopener" target="_blank">#Linux</a> <a href="https://mastodon.sdf.org/tags/OpenSource" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenSource</a> <a href="https://mastodon.sdf.org/tags/Computer" class="mention hashtag" rel="nofollow noopener" target="_blank">#Computer</a> <a href="https://mastodon.sdf.org/tags/Science" class="mention hashtag" rel="nofollow noopener" target="_blank">#Science</a>

Steve's PlaceI'm unraveling an Unreal Engine editor crash bug.When the crash happened, the editor got confused internally between 2 characters. One has a set of pointers that the other does not.When the game starts, and it's time to head to work, a vendor instead sprints to (0,0,0), and the log says one of those pointers is missing. It is not. It is missing in the other character because they are of 2 different base classes, and it doesn't have those pointers. That character with the "missing" pointer was once spawned in the game, but not as a vendor. What they have in common is the same skeletal meshes and animation blueprints.Somewhere, somehow, it thinks both skeletal meshes use the vendor base class. Uh... no.I saw the confusion when I was deleting the location markers. It showed both characters were using the location marker that it can't find when the game is running. Uh... no again.About to delete the character it's confused about. Not the vendor. Yet. I may delete both of them and start over. If this breaks it all, well, thank goodness for backups.<a href="https://mastodon.stevesworld.co/tags/GameDev" class="mention hashtag" rel="nofollow noopener" target="_blank">#GameDev</a> <a href="https://mastodon.stevesworld.co/tags/UE5" class="mention hashtag" rel="nofollow noopener" target="_blank">#UE5</a> <a href="https://mastodon.stevesworld.co/tags/RPG" class="mention hashtag" rel="nofollow noopener" target="_blank">#RPG</a> <a href="https://mastodon.stevesworld.co/tags/pointers" class="mention hashtag" rel="nofollow noopener" target="_blank">#pointers</a>

ko kāihe ahauThe <a href="https://pixelfed.nz/discover/tags/SouthernCross?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#SouthernCross</a> and the <a href="https://pixelfed.nz/discover/tags/Pointers?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#Pointers</a> in late <a href="https://pixelfed.nz/discover/tags/April?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#April</a>, 2024. <a href="https://pixelfed.nz/discover/tags/ShotOniPhone?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#ShotOniPhone</a> <a href="https://pixelfed.nz/discover/tags/iPhone15ProMax?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#iPhone15ProMax</a> <a href="https://pixelfed.nz/discover/tags/iPhoneography?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#iPhoneography</a> <a class="u-url mention" href="https://pixelfed.nz/usedarkroom" rel="nofollow noopener" target="_blank">@usedarkroom</a> <a href="https://pixelfed.nz/discover/tags/Palmy?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#Palmy</a> <a href="https://pixelfed.nz/discover/tags/NightSky?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#NightSky</a> <a href="https://pixelfed.nz/discover/tags/Stars?src=hash" class="u-url hashtag" rel="nofollow noopener" target="_blank">#Stars</a>

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