Jacques Gélinas on Fri, 12 Jul 2019 21:44:16 +0200


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Re: On saving clicks and keystrokes everyday...

Of course, this will not work on my Windows computer, since system() is intercepted, as it should be (I do not want my hard disk to be held hhostage for a large ransom in Bitcoins):

$ default(secure)
1
$ system("date")
  ***   at top-level: system("date")
  ***                 ^--------------
  *** system: [secure mode]: system commands not allowed
Tried to run 'date'.
$ \v
        GP/PARI CALCULATOR Version 2.12.1 (development 23932-643d17838)
         amd64 running cygwin (x86-64/GMP-6.1.2 kernel) 64-bit version
                 compiled: Jun  6 2019, gcc version 7.3.0 (GCC)
                            threading engine: single
                 (readline v7.0 enabled, extended help enabled)


Already in 1980, Donald Knuth designed TeX to be secure that way.
When PDFLaTex needs a pipe command to generate pictures with Gnuplot, the default has to be changed, and this is the same for GP.

Jacques Gélinas