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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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4
tests/stdlib/tnet_ll.nim
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@ -29,7 +29,7 @@ suite "inet_ntop tests":
check: ip4.s_addr == 0x10111213'u32
var buff: array[0..255, char]
let r = inet_ntop(AF_INET, cast[pointer](ip4.s_addr.addr), buff[0].addr, buff.len.int32)
let r = inet_ntop(AF_INET, cast[pointer](ip4.s_addr.addr), cast[cstring](buff[0].addr), buff.len.int32)
let res = if r == nil: "" else: $r
check: res == "19.18.17.16"
@ -41,7 +41,7 @@ suite "inet_ntop tests":
var ip6 = [0x1000'u16, 0x1001, 0x2000, 0x2001, 0x3000, 0x3001, 0x4000, 0x4001]
var buff: array[0..255, char]
let r = inet_ntop(AF_INET6, cast[pointer](ip6[0].addr), buff[0].addr, buff.len.int32)
let r = inet_ntop(AF_INET6, cast[pointer](ip6[0].addr), cast[cstring](buff[0].addr), buff.len.int32)
let res = if r == nil: "" else: $r
check: not ipv6Support or res == "10:110:20:120:30:130:40:140"