Jacques Gélinas on Fri, 31 Aug 2018 12:11:25 +0200 |
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RE: "intrinsic <return>" could be interpreted as "?intrinsic <return>" |
> 'gettime' is actually equivalent to 'gettime()'
Oh, I was not aware that this exception had been kept after the introduction of t_CLOSURE. This used indeed to be a nice rule for user functions, while returning an error for builtins.
In 2.4.1 (2007) for example,
# f(x)=x+3;
# f
%1 = 3
# primes
*** expected character: '(' instead of: primes
# cos
*** unexpected character: cos
Perhaps more important than backward compatibility
however is the possibility of future unexpected problems,
like those of Python where "print" is a statement in 2.x but
a function needing
parentheses in 3.x, annoying some users.
For gp, this could be prevented by a default option, such as the
"printlevel" in Maple which can be used to get the source
code of some builtins.
> hack in the gp main loop output routine ( src/gp/gp.c:normal_output() )
> I don't think it's worth the trouble or inconsistencies.
Thanks for these detailled explanations.
Jacques Gélinas
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