December 10, 2017
https://issues.dlang.org/show_bug.cgi?id=18053

          Issue ID: 18053
           Summary: Use stdint.h mangling for int64_t/uint64_t when
                    mangling D long/ulong
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: dmd
          Assignee: nobody@puremagic.com
          Reporter: bugzilla@digitalmars.com

Currently it's a bit of a nightmare of inconsistent behavior from one compiler to the next, making it hard to portably interface to C++ code. Making it conform to int64_t / uint64_t should fix that.

The Elf C++ spec for mangling is:

http://refspecs.linux-foundation.org/cxxabi-1.86.html#mangling

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