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digitalmars.D.bugs - [Issue 21750] New: -betterC undefined reference to _memsetn


          Issue ID: 21750
           Summary: -betterC undefined reference to _memsetn
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Severity: major
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: ryuukk.dev gmail.com

The following code produces:

onlineapp.d:15: error: undefined reference to '_memsetn'
collect2: error: ld returned 1 exit status
Error: linker exited with status 1

Only happen in with DMD -betterC, with LDC it compiles fine

Also on a more complex code base i get the following: 

 Error: `TypeInfo` cannot be used with -betterC

When creating a static array as local variable


struct Mat4
    float a;

struct Test
    char[64] a = 0;
    Mat4 b;

extern (C) int main()
    Test[1] test;
    return 0;

Mar 23 2021