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https://github.com/janet-lang/janet
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92 lines
2.9 KiB
Clojure
92 lines
2.9 KiB
Clojure
# Copyright (c) 2019 Calvin Rose & contributors
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to
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# deal in the Software without restriction, including without limitation the
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# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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# sell copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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(import test/helper :prefix "" :exit true)
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(start-suite 6)
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# some tests for bigint
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(def i64 int/s64)
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(def u64 int/u64)
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(assert-no-error
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"create some uint64 bigints"
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(do
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# from number
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(def a (u64 10))
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# max double we can convert to int (2^53)
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(def b (u64 0x1fffffffffffff))
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(def b (u64 (math/pow 2 53)))
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# from string
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(def c (u64 "0xffff_ffff_ffff_ffff"))
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(def c (u64 "32rvv_vv_vv_vv"))
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(def d (u64 "123456789"))))
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(assert-no-error
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"create some int64 bigints"
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(do
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# from number
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(def a (i64 -10))
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# max double we can convert to int (2^53)
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(def b (i64 0x1fffffffffffff))
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(def b (i64 (math/pow 2 53)))
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# from string
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(def c (i64 "0x7fff_ffff_ffff_ffff"))
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(def d (i64 "123456789"))))
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(assert-error
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"bad initializers"
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(do
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# double to big to be converted to uint64 without truncation (2^53 + 1)
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(def b (u64 (+ 0xffff_ffff_ffff_ff 1)))
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(def b (u64 (+ (math/pow 2 53) 1)))
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# out of range 65 bits
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(def c (u64 "0x1ffffffffffffffff"))
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# just to big
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(def d (u64 "123456789123456789123456789"))))
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(assert (:== (:/ (u64 "0xffff_ffff_ffff_ffff") 8 2) "0xfffffffffffffff") "bigint operations")
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(assert (let [a (u64 0xff)] (:== (:+ a a a a) (:* a 2 2))) "bigint operations")
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(assert-error
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"trap INT64_MIN / -1"
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(:/ (int/s64 "-0x8000_0000_0000_0000") -1))
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# in place operators
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(assert (let [a (u64 1e10)] (:+! a 1000000 "1000000" "0xffff") (:== a 10002065535)) "in place operators")
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# int64 typed arrays
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(assert (let [t (tarray/new :int64 10)
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b (i64 1000)]
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(set (t 0) 1000)
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(set (t 1) b)
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(set (t 2) "1000")
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(set (t 3) (t 0))
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(set (t 4) (u64 1000))
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(and
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(:== (t 0) (t 1))
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(:== (t 1) (t 2))
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(:== (t 2) (t 3))
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(:== (t 3) (t 4))
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))
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"int64 typed arrays")
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(end-suite)
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