| --- Log opened Sun Jan 27 00:00:02 2019 |
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| 14:06 | <&[R]> | <ender> https://twitter.com/berenguel/status/1088814229401018375 → https://www.google.com/search?q=how%20to%20tell%20if%20you're%20running%20jdk%20or%20jre |
| 14:20 | < Emmy> | yup, does the same for google NL as well XD |
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| 14:33 | <~Vorntastic> | That is wild. I wonder why |
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| 15:26 | <&ToxicFrog> | Google (like most other search engines) has a feature where if it thinks you're researching ways to kill yourself it'll insert a local suicide hotline or similar as the first result, which appears to be triggering here |
| 15:27 | <&ToxicFrog> | I have no idea why it's triggering on this query, though |
| 15:28 | | * [R] wonders if it's related to Oracle being asswipes |
| 15:33 | <@abudhabi> | https://www.youtube.com/watch?v=ZWQ0591PAxM |
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| 22:16 | < Degi> | Is it possible to turn a double[n] arr to a byte[n * sizeof(double)] in c++ with reinterpret_cast<char*>(&arr) and back? |
| 22:17 | < Degi> | Or is there any simpler method to store a double[8*64] on a esp8266 |
| 22:20 | <&ToxicFrog> | What's wrong with just declaring it as a double[8*64]? |
| 22:20 | <&ToxicFrog> | If you do need to cast it, yes, I think that should work, although you'll probably want uint8_t rather than char* for clarity |
| 22:27 | < Degi> | I think I need it as byte type to store it with spiffs.write since it requires a uint8_t array |
| 22:33 | <&ToxicFrog> | I have no idea what spiffs.write is, but in that case, yes, just cast it and make sure you pass the correct size |
| 22:43 | < Degi> | Hm ok, that's pretty nice about c++ |
| 22:46 | < Degi> | Oh wait, it takes const void* as a type. So can I pass &arr or arr as an argument? Is the size the size of the array in doubles or in bytes? |
| 22:51 | <&[R]> | " Is the size the size of the array in doubles or in bytes?" <-- ??? |
| 22:52 | <&[R]> | double d[6]; // array of six doubles, which is sizeof(double) * 6 bytes |
| 22:53 | < Degi> | Ah oopsie, it is sizeof(double)*n because it needs byte size. All good. |
| 22:53 | <&[R]> | "So can I pass &arr or arr as an argument?" <-- an array is syntactically similiar to a pointer. So arr (without an index) is technically a pointer to the first element for most purposes. |
| 22:54 | < Degi> | So arr can be used instead of &arr in most cases |
| 22:56 | <&[R]> | &arr would be used if something's asking for a pointer-to-a-pointer. (Eg: void **) |
| 22:57 | <&[R]> | Unless arr is a double array (IE: double arr[10][10]), then arr raw would be a pointer to a pointer and &arr would be used to fill a pointer-to-a-pointer-to-a-pointer. |
| 23:03 | < Degi> | data.write(reinterpret_cast<uint8_t*>(calibrationSlope), 32*8*sizeof(double)); |
| 23:03 | < Degi> | data.read(reinterpret_cast<uint8_t*>(calibrationSlope), 32*8*sizeof(double)); |
| 23:03 | < Degi> | This compiles |
| 23:04 | < Degi> | https://github.com/esp8266/Arduino/blob/74819a763bfb6e9890a57411dcea4aba221a778d/cores/esp8266/FS.h This is the header source I think |
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| --- Log closed Mon Jan 28 00:00:03 2019 |