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fixes ptr to cstring warnings[backport] (#20848)

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* fix =#13790 ptr char (+friends) should not implicitly convert to cstring

* Apply suggestions from code review

* first round; compiles on windows

* nimPreviewSlimSystem

* conversion is unsafe, cast needed

* fixes more tests

* fixes asyncnet

* another try another error

* last one

* true

* one more

* why bugs didn't show at once

* add `nimPreviewCstringConversion` switch

* typo

* fixes ptr to cstring warnings[backport]

* add fixes

Co-authored-by: xflywind <43030857+xflywind@users.noreply.github.com>
This commit is contained in:
ringabout 2022-11-16 17:22:51 +08:00 • committed by GitHub
commit 06cd15663d
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25 changed files with 50 additions and 50 deletions
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2
tests/float/tfloat4.nim
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@ -8,7 +8,7 @@ proc c_sprintf(buf, fmt: cstring) {.importc:"sprintf", header: "<stdio.h>", vara
proc floatToStr(f: float64): string =
var buffer: array[128, char]
c_sprintf(addr buffer, "%.16e", f)
c_sprintf(cast[cstring](addr buffer), "%.16e", f)
result = ""
for ch in buffer:
if ch == '\0':