https://issues.dlang.org/show_bug.cgi?id=19945

Nathan S. <n8sh.secondary@hotmail.com> changed:

           What    |Removed                     |Added
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           Keywords|                            |betterC

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https://issues.dlang.org/show_bug.cgi?id=19945

Walter Bright <bugzilla@digitalmars.com> changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |bugzilla@digitalmars.com
         Resolution|---                         |INVALID

--- Comment #1 from Walter Bright <bugzilla@digitalmars.com> ---
The -betterC is for programs that do not use the D runtime library. At link time, the D runtime library is not searched by the linker, only the C runtime library is.

Your example program is using std.random, which is part of the D runtime library. The undefined symbol:

_D3std6random__T24LinearCongruentialEngineTkVki48271Vki0Vki2147483647ZQCc5frontMxFNaNbNdNiNfZk

looks like std.random.LinearCongruentialEngine.front() is not found, which makes sense because that function is in the D runtime library which is not linked in.

_D3std6random__T24LinearCongruentialEngineTkVki48271Vki0Vki2147483647ZQCc6__initZ

is the static initializer for std.random.LinearCongruentialEngine and is also not found because it is in the D runtime library.

If the compile is able to inline everything it needs from the D runtime library, it will work because it then won't need to look in the D runtime library to find it. You'll know when it doesn't work by the appearance of the undefined symbols.

I'm going to mark this as invalid because using the D runtime library in -betterC is not officially supported (even though it may work) since the whole point of -betterC is to not use the D runtime library.

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https://issues.dlang.org/show_bug.cgi?id=19945

Richard Cattermole <alphaglosined@gmail.com> changed:

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                 CC|                            |alphaglosined@gmail.com

--- Comment #2 from Richard Cattermole <alphaglosined@gmail.com> ---
Walter is probably correct that we cannot fix this.

However, it should work due to LinearCongruentialEngine being templated.

For dmd if -allinst makes this code work, then it is indeed a template emission bug.

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