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make -d:nimFpRoundtrips work consistently in vm vs rt, fix #18400, etc (#18531)

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* compiler/vmhooks: add getVar to allow vmops with var params
* addFloat vmops with var param
* cgen now renders float32 literals in c backend using roundtrip float to string
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Timothee Cour 2021-07-20 13:13:52 -07:00 • committed by GitHub
commit cf0cf32d27
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21 changed files with 286 additions and 199 deletions
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13
lib/system/dollars.nim
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@ -1,5 +1,6 @@
import std/private/digitsutils
import system/formatfloat
export addFloat
proc `$`*(x: int): string {.magic: "IntToStr", noSideEffect.}
## The stringify operator for an integer argument. Returns `x`
@ -40,13 +41,9 @@ proc `$`*(x: int64): string {.magic: "Int64ToStr", noSideEffect.}
## The stringify operator for an integer argument. Returns `x`
## converted to a decimal string.
proc `$`*(x: float): string {.magic: "FloatToStr", noSideEffect.}
## The stringify operator for a float argument. Returns `x`
## converted to a decimal string.
proc `$`*(x: float32): string {.magic: "FloatToStr", noSideEffect.}
## The stringify operator for a float32 argument. Returns `x`
## converted to a decimal string.
func `$`*(x: float | float32): string =
## Outplace version of `addFloat`.
result.addFloat(x)
proc `$`*(x: bool): string {.magic: "BoolToStr", noSideEffect.}
## The stringify operator for a boolean argument. Returns `x`