[Issue 18395] New: std.conv.hexString can't be used in BetterC

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18395

          Issue ID: 18395
           Summary: std.conv.hexString can't be used in BetterC
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: betterC
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: greensunny12 at gmail.com

---
extern(C) void main()
{
    import core.stdc.stdio;
    auto data = cast(ubyte[]) hexString!"deadbeef";
}
---
https://run.dlang.io/is/TEJDZO


> dmd -betterC main.d


/dlang/dmd/linux/bin64/../../src/phobos/std/conv.d:6046: error: undefined
reference to '_D11TypeInfo_Aa6__initZ'
/dlang/dmd/linux/bin64/../../src/phobos/std/conv.d:6046: error: undefined
reference to '_d_arraysetlengthiT'
/dlang/dmd/linux/bin64/../../src/phobos/std/conv.d:6051: error: undefined
reference to '_D3std5ascii10isHexDigitFNaNbNiNfwZb'
/dlang/dmd/linux/bin64/../../src/phobos/std/conv.d:6070: error: undefined
reference to '_D11TypeInfo_Aa6__initZ'
/dlang/dmd/linux/bin64/../../src/phobos/std/conv.d:6070: error: undefined
reference to '_d_arraysetlengthiT'
collect2: error: ld returned 1 exit status

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