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#
#
# The Nim Compiler
# (c) Copyright 2020 Nim Contributors
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This module adds functionality to the built-in `set` type.
## See also std/packedsets, std/sets
import typetraits
#[
type SetElement* = char|byte|bool|int16|uint16|enum|uint8|int8
## The allowed types of a built-in set.
]#
template toSet*(iter: untyped): untyped =
## Return a built-in set from the elements of iterable `iter`
runnableExamples:
assert "helloWorld".toSet == {'W', 'd', 'e', 'h', 'l', 'o', 'r'}
assert toSet([10u16, 20, 30]) == {10u16, 20, 30}
assert [30u8, 100, 10].toSet == {10u8, 30, 100}
assert toSet(@[1321i16, 321, 90]) == {90i16, 321, 1321}
assert toSet([false]) == {false}
assert toSet(0u8..10) == {0u8..10}
var result: set[elementType(iter)]
for x in iter:
incl(result, x)
result
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