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BigInt runnableExamples: octal, binary, hex constructor (#16868)

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Co-authored-by: Timothee Cour <timothee.cour2@gmail.com>
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Juan Carlos 2021-01-29 22:48:47 -03:00 • committed by GitHub
commit b8e8eaae66
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1 changed files with 19 additions and 11 deletions
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30
lib/std/jsbigints.nim
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@ -10,11 +10,18 @@ func big*(integer: SomeInteger): JsBigInt {.importjs: "BigInt(#)".} =
## Constructor for `JsBigInt`. ## Constructor for `JsBigInt`.
runnableExamples: runnableExamples:
doAssert big(1234567890) == big"1234567890" doAssert big(1234567890) == big"1234567890"
doAssert 0b1111100111.big == 0o1747.big and 0o1747.big == 999.big
func big*(integer: cstring): JsBigInt {.importjs: "BigInt(#)".} = func big*(integer: cstring): JsBigInt {.importjs: "BigInt(#)".} =
## Constructor for `JsBigInt`. ## Constructor for `JsBigInt`.
runnableExamples: runnableExamples:
doAssert big"-1" == big"1" - big"2" doAssert big"-1" == big"1" - big"2"
# supports decimal, binary, octal, hex:
doAssert big"12" == 12.big
doAssert big"0b101" == 0b101.big
doAssert big"0o701" == 0o701.big
doAssert big"0xdeadbeaf" == 0xdeadbeaf.big
doAssert big"0xffffffffffffffff" == (1.big shl 64.big) - 1.big
func toCstring*(this: JsBigInt; radix: 2..36): cstring {.importjs: "#.toString(#)".} = func toCstring*(this: JsBigInt; radix: 2..36): cstring {.importjs: "#.toString(#)".} =
## Converts from `JsBigInt` to `cstring` representation. ## Converts from `JsBigInt` to `cstring` representation.
@ -190,17 +197,18 @@ proc high*(_: typedesc[JsBigInt]): JsBigInt {.error:
runnableExamples: runnableExamples:
let big1: JsBigInt = big"2147483647" block:
let big2: JsBigInt = big"666" let big1: JsBigInt = big"2147483647"
doAssert JsBigInt isnot int let big2: JsBigInt = big"666"
doAssert big1 != big2 doAssert JsBigInt isnot int
doAssert big1 > big2 doAssert big1 != big2
doAssert big1 >= big2 doAssert big1 > big2
doAssert big2 < big1 doAssert big1 >= big2
doAssert big2 <= big1 doAssert big2 < big1
doAssert not(big1 == big2) doAssert big2 <= big1
let z = JsBigInt.default doAssert not(big1 == big2)
doAssert $z == "0n" let z = JsBigInt.default
doAssert $z == "0n"
block: block:
var a: seq[JsBigInt] var a: seq[JsBigInt]
a.setLen 2 a.setLen 2