[Issue 21267] New: Make std.complex work with -betterC

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21267

          Issue ID: 21267
           Summary: Make std.complex work with -betterC
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: n8sh.secondary at hotmail.com

Make std.complex work with -betterC by using math functions from the C standard
library when std.math will not be unavailable. This means some operations will
become impure when compiling with -betterC.

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