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

* 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>
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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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@ -91,7 +91,7 @@ proc copyStr(s: NimString, start: int): NimString {.compilerproc.} =
proc nimToCStringConv(s: NimString): cstring {.compilerproc, nonReloadable, inline.} =
if s == nil or s.len == 0: result = cstring""
else: result = cstring(addr s.data)
else: result = cast[cstring](addr s.data)
proc toNimStr(str: cstring, len: int): NimString {.compilerproc.} =
result = rawNewStringNoInit(len)