Compiling


import std.experimental.all;

@safe pure nothrow @nogc unittest
{
    assert(1 == 3);
}

with ldmd2 version 1.15.0-beta2 as

    ldmd2 -vcolumns -checkaction=context -unittest foo.d

errors as

/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/../import/object.d(4903,12): Error: cannot implicitly convert expression `buffer` of type `char[]` to `string`
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/../import/std/format.d(1246,16): Error: template instance `object._d_assert_fail!("==", char[], string)` error instantiating
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/../import/std/bigint.d(924,70):        instantiated from here: `FormatSpec!char`
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/../import/std/complex.d(874,1): Error: template instance `std.complex.Complex!real` error instantiating


And with dmd v2.085.1-beta.1 as

    dmd -vcolumns -checkaction=context -unittest foo.d

it errors in similar way

/usr/include/dmd/druntime/import/object.d(4845,12): Error: cannot implicitly convert expression `buffer` of type `char[]` to `string`
/usr/include/dmd/phobos/std/format.d(1246,16): Error: template instance `object._d_assert_fail!("==", char[], string)` error instantiating
/usr/include/dmd/phobos/std/bigint.d(924,70):        instantiated from here: `FormatSpec!char`
/usr/include/dmd/phobos/std/complex.d(874,1): Error: template instance `std.complex.Complex!real` error instantiating

On Tuesday, 26 March 2019 at 10:47:18 UTC, Per Nordlöw wrote:
> Compiling

Has anybody filed a bugzilla for this issue?

On Tuesday, 26 March 2019 at 10:47:18 UTC, Per Nordlöw wrote:
> Compiling
>
> import std.experimental.all;
>
> @safe pure nothrow @nogc unittest
> {
>     assert(1 == 3);
> }

Note that code compiles and runs correctly if the import is removed.

On Tuesday, 26 March 2019 at 10:47:18 UTC, Per Nordlöw wrote:
> errors as
>
> /home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/../import/object.d(4903,12): Error: cannot implicitly convert expression `buffer` of type `char[]` to `string`

Code compiles when I qualify `_d_assert_fail` as `@trusted` and replace its return statement with

    return cast(string)castbuffer;

But then ldmd2 crashes as

/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN4llvm3sys15PrintStackTraceERNS_11raw_ostreamE+0x2a)[0x2d619ca]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN4llvm3sys17RunSignalHandlersEv+0x4c)[0x2d5f94c]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2[0x2d5fab7]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x12890)[0x7fc9d4f45890]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN25ExpressionSemanticVisitor5visitEP9AssertExp+0x44e)[0xcc67fe]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN24StatementSemanticVisitor5visitEP12ExpStatement+0x62)[0xb911b2]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN24StatementSemanticVisitor5visitEP17CompoundStatement+0x130)[0xb91b30]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN24StatementSemanticVisitor5visitEP19TryFinallyStatement+0x3d)[0xbb14fd]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN24StatementSemanticVisitor5visitEP17CompoundStatement+0xc4c)[0xb9264c]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP15FuncDeclaration+0x1832)[0xbc7752]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP17AttribDeclaration+0x7e)[0xbd029e]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP17AttribDeclaration+0x7e)[0xbd029e]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP17AttribDeclaration+0x7e)[0xbd029e]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP20AggregateDeclaration+0x8d)[0xbd036d]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP16TemplateInstance+0x142)[0xbc52a2]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_ZN16Semantic3Visitor5visitEP6Module+0x95)[0xbc5b05]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_Z13mars_mainBodyR5ParamR5ArrayIPKcES5_+0xdf7)[0xc3cbd7]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_Z7cppmainiPPc+0x17d6)[0xe52676]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(void rt.dmain2._d_run_main(int, char**, extern (C) int function(char[][])*).runAll()+0x50)[0x2fa46a0]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_d_run_main+0x218)[0x2fa44b8]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7)[0x7fc9d41ecb97]
/home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2(_start+0x29)[0xb51939]
Error: Error executing /home/per/.local/ldc2-1.15.0-beta2-linux-x86_64/bin/ldc2: Segmentation fault (core dumped)

On Tuesday, 26 March 2019 at 10:54:29 UTC, Per Nordlöw wrote:
> On Tuesday, 26 March 2019 at 10:47:18 UTC, Per Nordlöw wrote:
>> Compiling
>
> Has anybody filed a bugzilla for this issue?

No, you should.

https://issues.dlang.org/show_bug.cgi?id=19764

On Wednesday, 27 March 2019 at 18:28:05 UTC, Kagamin wrote:
> https://issues.dlang.org/show_bug.cgi?id=19764

What about the missing

    return cast(string)castbuffer;

Isn't that needed aswell?

On Wednesday, 27 March 2019 at 21:18:22 UTC, Per Nordlöw wrote:
> On Wednesday, 27 March 2019 at 18:28:05 UTC, Kagamin wrote:
>> https://issues.dlang.org/show_bug.cgi?id=19764
>
> What about the missing
>
>     return cast(string)castbuffer;
>
> Isn't that needed aswell?

Fix at https://github.com/dlang/druntime/pull/2528

On Wednesday, 27 March 2019 at 14:01:38 UTC, Per Nordlöw wrote:
> But then ldmd2 crashes as

The frontend crashes, i.e., DMD too: https://issues.dlang.org/show_bug.cgi?id=19768