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fix toHex - make it work with int literals (#15770)

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Miran 2020-10-30 10:04:53 +01:00 • committed by GitHub
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lib/pure/strutils.nim
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@ -981,6 +981,18 @@ proc toHex*(x: BiggestInt, len: Positive): string {.noSideEffect,
doAssert c.toHex(6) == "FFFFF8" doAssert c.toHex(6) == "FFFFF8"
toHexImpl(cast[BiggestUInt](x), len, x < 0) toHexImpl(cast[BiggestUInt](x), len, x < 0)
proc toHex*(x: int, len: Positive): string {.noSideEffect.} =
## Converts `x` to its hexadecimal representation.
##
## The resulting string will be exactly `len` characters long. No prefix like
## ``0x`` is generated. `x` is treated as an unsigned value.
runnableExamples:
doAssert toHex(62, 3) == "03E"
doAssert toHex(4097, 3) == "001"
doAssert toHex(4097, 4) == "1001"
doAssert toHex(-8, 6) == "FFFFF8"
toHexImpl(cast[BiggestUInt](x), len, x < 0)
proc toHex*[T: SomeInteger](x: T): string {.noSideEffect.} = proc toHex*[T: SomeInteger](x: T): string {.noSideEffect.} =
## Shortcut for ``toHex(x, T.sizeof * 2)`` ## Shortcut for ``toHex(x, T.sizeof * 2)``
runnableExamples: runnableExamples: