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simplify toHex (#15821)

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Timothee Cour 2020-11-02 14:48:36 +01:00 • committed by GitHub
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1 changed files with 2 additions and 29 deletions
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31
lib/pure/strutils.nim
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@ -951,11 +951,11 @@ proc toHexImpl(x: BiggestUInt, len: Positive, handleNegative: bool): string {.no
# handle negative overflow
if n == 0 and handleNegative: n = not(BiggestUInt 0)
proc toHex*(x: BiggestUInt, len: Positive): string {.noSideEffect.} =
proc toHex*[T: SomeInteger](x: T, 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.
## ``0x`` is generated. `x` is treated as an unsigned value.
runnableExamples:
let
a = 62'u64
@ -963,34 +963,7 @@ proc toHex*(x: BiggestUInt, len: Positive): string {.noSideEffect.} =
doAssert a.toHex(3) == "03E"
doAssert b.toHex(3) == "001"
doAssert b.toHex(4) == "1001"
toHexImpl(x, len, false)
proc toHex*(x: BiggestInt, len: Positive): string {.noSideEffect,
rtl, extern: "nsuToHex".} =
## 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:
let
a = 62
b = 4097
c = -8
doAssert a.toHex(3) == "03E"
doAssert b.toHex(3) == "001"
doAssert b.toHex(4) == "1001"
doAssert c.toHex(6) == "FFFFF8"
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)