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Branches: main
Add procedures to the array module for creating and filling new arrays in a
single call. (This avoids situations where the elements of a newly created
array are set to initial value which is then immediately overwritten.)
library/array.m:
Add the function array.generate/2 and the predicate
array.generate_foldl/5.
Add an XXX regarding some C# foreign code in this module.
NEWS:
Announce the new predicate and function.
tests/hard_coded/Mmakefile:
tests/hard_coded/array_gen.{m,exp}:
Test the new functionality.
30 lines
598 B
Mathematica
30 lines
598 B
Mathematica
% Test array generators.
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%
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:- module array_gen.
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:- interface.
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:- import_module io.
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:- pred main(io::di, io::uo) is det.
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:- implementation.
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:- import_module array.
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:- import_module int.
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:- import_module list.
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:- import_module string.
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main(!IO) :-
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Array = array.generate(10, (func(I) = I * 2)),
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io.write(Array, !IO),
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io.nl(!IO),
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array.generate_foldl(10, gen_elem, Array2, !IO),
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io.write(Array2, !IO),
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io.nl(!IO).
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:- pred gen_elem(int::in, int::out, io::di, io::uo) is det.
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gen_elem(Index, Result, !IO) :-
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Result = Index * 3,
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io.format("Array2[%d] = %d\n", [i(Index), i(Result)], !IO).
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