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tyInt tyUint fit target int bit width (#20829)

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Bung 2022-12-01 20:34:00 +08:00 • committed by GitHub
commit 658b28dc57
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17 changed files with 306 additions and 267 deletions
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16
lib/std/private/schubfach.nim
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@ -244,7 +244,7 @@ proc toDecimal32(ieeeSignificand: uint32; ieeeExponent: uint32): FloatingDecimal
## ToChars
## ==================================================================================================
proc printDecimalDigitsBackwards(buf: var openArray[char]; pos: int; output: uint32): int32 {.inline.} =
proc printDecimalDigitsBackwards[T: Ordinal](buf: var openArray[char]; pos: T; output: uint32): int32 {.inline.} =
var output = output
var pos = pos
var tz: int32 = 0
@ -300,7 +300,7 @@ proc printDecimalDigitsBackwards(buf: var openArray[char]; pos: int; output: uin
buf[pos] = chr(uint32('0') + q)
return tz
proc decimalLength(v: uint32): int32 {.inline.} =
proc decimalLength(v: uint32): int {.inline.} =
sf_Assert(v >= 1)
sf_Assert(v <= 999999999'u)
if v >= 100000000'u:
@ -321,7 +321,7 @@ proc decimalLength(v: uint32): int32 {.inline.} =
return 2
return 1
proc formatDigits(buffer: var openArray[char]; pos: int; digits: uint32; decimalExponent: int32;
proc formatDigits[T: Ordinal](buffer: var openArray[char]; pos: T; digits: uint32; decimalExponent: int;
forceTrailingDotZero: bool = false): int {.inline.} =
const
minFixedDecimalPoint: int32 = -4
@ -333,8 +333,8 @@ proc formatDigits(buffer: var openArray[char]; pos: int; digits: uint32; decimal
sf_Assert(digits <= 999999999'u)
sf_Assert(decimalExponent >= -99)
sf_Assert(decimalExponent <= 99)
var numDigits: int32 = decimalLength(digits)
let decimalPoint: int32 = numDigits + decimalExponent
var numDigits = decimalLength(digits)
let decimalPoint = numDigits + decimalExponent
let useFixed: bool = minFixedDecimalPoint <= decimalPoint and
decimalPoint <= maxFixedDecimalPoint
## Prepare the buffer.
@ -342,7 +342,7 @@ proc formatDigits(buffer: var openArray[char]; pos: int; digits: uint32; decimal
for i in 0..<32: buffer[pos+i] = '0'
assert(minFixedDecimalPoint >= -30, "internal error")
assert(maxFixedDecimalPoint <= 32, "internal error")
var decimalDigitsPosition: int32
var decimalDigitsPosition: int
if useFixed:
if decimalPoint <= 0:
## 0.[000]digits
@ -386,7 +386,7 @@ proc formatDigits(buffer: var openArray[char]; pos: int; digits: uint32; decimal
## d.igitsE+123
buffer[pos+1] = '.'
pos = digitsEnd
let scientificExponent: int32 = decimalPoint - 1
let scientificExponent = decimalPoint - 1
## SF_ASSERT(scientific_exponent != 0);
buffer[pos] = 'e'
buffer[pos+1] = if scientificExponent < 0: '-' else: '+'
@ -412,7 +412,7 @@ proc float32ToChars*(buffer: var openArray[char]; v: float32; forceTrailingDotZe
if exponent != 0 or significand != 0:
## != 0
let dec: auto = toDecimal32(significand, exponent)
return formatDigits(buffer, pos, dec.digits, dec.exponent, forceTrailingDotZero)
return formatDigits(buffer, pos, dec.digits, dec.exponent.int, forceTrailingDotZero)
else:
buffer[pos] = '0'
buffer[pos+1] = '.'