ratboy666

"The key takeaway here is that an exception cannot be ignored or forgotten; if we have an exception, it must be dealt with."

If converted to simple "C style" status returns -- it is only 5 times slower (11.5ns vs 57.5ns) -- and can be ignored and forgotten.

In the associated slide deck, boolean valid() must be used before value. In this case, this is just as unsafe as C return codes. A C++ exception is always considered an lvalue, meaning that union is initialized, but I am not sure what reading the other side results in (I don't think that this is allowed).

My take on this? Please use an exception if you mean an exception (for C++). If it is too slow (which I consider unlikely), please deal with it some other way (I would suggest a status return).

Wildfires need an accumulation of fuel. Climate change could produce the fuel, but that would be a process of decades. Indeed, bad fires in 1975 -- 45 years later there is enough fuel.

Which would mean that the mechanism would be: climate change -> growth of fuel -> burn.

https://www.ncbi.nlm.nih.gov/books/NBK232323/

Indicates that baseline is 2T/year/human (in Spain).

840lbs to 6710lbs (resting to active) exhalation. Which means, not below 0.5T/year/human. We are at 20T/year/human here in Canada -- but, of course, at 8953 trees/human, with each tree absorbing 48lbs of CO2/year, Canada absorbs 215T/year/human (carbon negative in Canada by 195T/year/human).

What action would you like? Carbon tax? We have that. Eliminate oil production? Working on that (no pipelines being built, tar-sands bitumen not being sold to anyone but the US).

https://www.oecd-ilibrary.org/sites/9789264279612-en/index.h...

Personally, I prefer not to freeze, so burn natural gas to heat my house. Really big country, need transport.

I imagine that I could use wood heating could be used - 2 cords per season should be sufficient (6 to 20 trees, depending on diameter - 8 to 14 inches). I previously (20 years ago) converted all wood burning to natural gas, but could convert back. I no longer own enough land for my tree needs but (afair) 2 acres for food, 4 acres for fuel, so 6 acres of land of be sufficient for my needs.

This would reduce my carbon footprint, but would be more polluting -- which would you prefer?

Of course, I will call out you "climate shifts ... make many places less habitable". Name one. Anywhere on the planet.

"scientific consensus" is not a thing. Also, "proven time and time again"? Just to let you know, water vapour is a much larger contributor.

Sure, sue because the Government lied. Why don't you vote them out? Can you sue them?

Nicotine gum may improve short-term memory. Nicotine may account for why smokers are less likely to develop Parkinson's disease.

So, prior to a board meeting: "Who is female?". Ok, we are covered.... Don't know what happens after the meeting, but that doesn't matter. For the purposes of the law, the board is not "all-male". Anyone who disagrees can then be taken to court, for discrimination.

That is how I would play this. Just good fun.

FredW

Custody of Infants Act 1839. Prior to this, men both "made the money" and received custody of the children.

https://en.wikipedia.org/wiki/Custody_of_Infants_Act_1839

FredW

Personally, I don't like the idea that the expression of some latent genes may produce this monster:

https://www.thestar.com/news/2009/02/04/croceating_snake_was...

Which is only possibly if the temperature goes up considerably. Which means that my answer is: "Yes, some climate change is a problem". From the perspective of the giant snakes, the answer is the same: yes, climate cooling is a problem. Go figure, the same answer on any change. On the contrary, climate staying the same? Trees are, in general, happier if there is more CO2. There are lots of trees -- if they had a "vote", I'm pretty sure they want more CO2. So, in favour of warming.

All of this (our needs, snake needs, tree needs, etc) makes for a very interesting and complex problem.

What I don't understand is "climate change advocacy". Given that the climate changes, is that advocacy for more change? Less change? And how is this a "tool for oppression"? I live in Canada -- we have a carbon tax, which is oppressive.

Can you clarify a bit?

Thanks in advance FredW

https://www.washingtonpost.com/graphics/world/tree-density/?...

From this, we determine that Canada has 8953 trees per person.

Next, how much carbon does each tree sink:

https://projects.ncsu.edu/project/treesofstrength/treefact.h...

48 pounds of carbon per tree, per year.

Which means that, in Canada, 214.8 tons of carbon are sequestered annually per person.

Canada's people generate 15.7 tons of carbon per person (or, as the linked article puts it, about 4 times the global average).

http://www.changeyourcorner.com/articles/034.php

So, Canada is STILL "carbon negative" -- in a major way.

So, there is one example. In North America, even.

FredW

edit: added "per person" to usage, change But to So in conclusion.

#1 E5 is a "sync byte" it cannot be rotated and mis-interpreted: E5 E5 E5 ... can be used to synchronize a bitstream. Note that floppy discs are read bit-wise.

#2 Empty 8" floppy discs came pre-formatted with E5 written everywhere.

#3 05 is a "control-e" in "extended 8 bit ASCII (IBM encoding)". E5 was a usable character.

With CP/M, the disc bitmap was produced when the disc was "loaded". All directory entries were scanned, and the allocation bitmap was produced. A freshly formatted disc would have E5 fill, and thus would have no files. MS-DOS had a separate allocation table, which was also the file linkage table. So, the strategy of a fresh E5 filled disc being taken as empty no longer works. But, the key of a deleted entry having E5 as the initial character was still used.

Hope this helps.

ssh carthoris ls /mnt/media/Movies | grep Spider

(this is just an example). Note that in this example, we have two processes running on two different machines. Indeed, the OSs and systems on these machines may be, um... different. Indeed, I routinely include "cloud" machines in pipelines. Indeed, with ssh, the -Y (or -X) option can introduce a GUI to a part of the command.

I have wished that shar was part of SUS. Also, I find that "exodus" is useful (across Linux anyway -- the systems have to be "reasonably" homogenous). https://github.com/intoli/exodus

Congradulations! Very nice work

Windows was not yet a thing.

GNU APL also supports a library version (libapl.so) which allows APL2 to be incorporated into other applications via C ffi. This is my primary use case -- interactive development followed by delivery via libapl.so.

https://www.fossil-scm.org/index.html/doc/trunk/www/index.wi...

Note that each (¨) is an operator -- there is no ambiguity.

      ⍴¨(1 2 3)(1 2)(1 2 3 4 5)
  3 2 5

each(rho, ((1 2 3) (1 2) (1 2 3 4 5)))

So -- your example would be (better)

transpose(take(each(index, x), x))

Quoting the GNU APL manual:

"There are 4 APL symbols / ⌿ \ and ⍀ that can be functions or operators, depending on their context (i.e. depending on the APL tokens left of them). Neither the ISO standard nor the otherwise excellent IBM APL2 language reference manual explain the rules that decide whether, for example /, should mean ’function compress’ or ’operator reduce’. In simple cases the meaning of / is obvious: +/B means ’operator reduce’ while 1/B means ’function compress’. "

" an become more complex if index brackets or parentheses are involved. The algorithm used in GNU APL for classifying / and friend is (simplified) this:

   1.  / ⌿ \ and ⍀ are tokenized as operators

   2.  Scan the tokenized statement from left to right to find / ⌿ \ or ⍀

   3.  If a / ⌿ \ or ⍀ is found, go backwards until a constant, or a function, or a user-defined name is found: 3a.  if a constant, a function, or a user-defined name is found then →4 3b.  if ) is seen then skip over it, That is, a parenthesized expression is entered.  3c.  if ] is seen then skip until the corresponding [ is found, That is an index list or axis is skipped over.  3d.  otherwise: SYNTAX ERROR

   4.  decide the role of / \ ⌿ or ⍀ based on the kind of token that was found in 3a: 4a.  function: leave / as operator as initially tokenized 4b.  constant: change / from operator to function (compress) 4c.  see below

   This works fine except in case 4c.  which cannot be resolved at ⎕FX time.  For this case we introduce the following convention:

   A user-defined name is assumed to be a function (and hence / is an operator) unless the name (and nothing else) is enclosed in parentheses. For example:

       A  / B    ⍝ A is function, therefore / is operator

      (A) / B    ⍝ A is value, therefore / is function

   This rule is moderately compatible with ISO and APL2; in APL2 (A) would be redundant parentheses so in that case there would be a small incompatibility between GNU APL and IBM APL2.

      )help ≢
    monadic function: Z ← ≢ B  (Tally)
    Returns the number of elements in the first dimension of B.

    dyadic function:  Z ← A ≢ B  (Not match)
    Returns 1 if A has not the same shape and ravel as B.

APL doesn't have precedence rules. 5 times 4 plus 1 is 25 (1 plus 4) times 5. Turns out reading left to right works.

So the tree is trivial.