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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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17
tests/stdlib/tjsonutils.nim
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@ -161,16 +161,15 @@ template fn() =
doAssert b[2].signbit
doAssert not b[3].signbit
when defined(nimFpRoundtrips):
block: # bug #15397, bug #13196
let a = 0.1
let x = 0.12345678901234567890123456789
let b = (a + 0.2, 0.3, x)
testRoundtripVal(b): "[0.30000000000000004,0.3,0.12345678901234568]"
block: # bug #15397, bug #13196
let a = 0.1
let x = 0.12345678901234567890123456789
let b = (a + 0.2, 0.3, x)
testRoundtripVal(b): "[0.30000000000000004,0.3,0.12345678901234568]"
testRoundtripVal(0.12345678901234567890123456789): "0.12345678901234568"
testRoundtripVal(epsilon(float64)): "2.220446049250313e-16"
testRoundtripVal(1.0 + epsilon(float64)): "1.0000000000000002"
testRoundtripVal(0.12345678901234567890123456789): "0.12345678901234568"
testRoundtripVal(epsilon(float64)): "2.220446049250313e-16"
testRoundtripVal(1.0 + epsilon(float64)): "1.0000000000000002"
block: # case object
type Foo = object