• d-bugmail puremagic.com (31/31) Jun 22 2013 http://d.puremagic.com/issues/show_bug.cgi?id=10444
• d-bugmail puremagic.com (17/17) Jun 23 2013 http://d.puremagic.com/issues/show_bug.cgi?id=10444

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=10444

           Summary: writeln of a SIMD register
           Product: D
           Version: D2
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



import std.stdio, core.simd;
void main() {
    ubyte16 x;
    writeln(x); // Error
}


DMD 2.064alpha gives a long sequence of errors:

...\format.d(2950): Error: template std.format.formatValue does not match any
function template declaration. Candidates are:
...
test.d(4): Error: template instance std.stdio.writeln!(__vector(ubyte[16u]))
error instantiating


The workaround is to use .array:

writeln(x.array); // OK

But I'd like writeln to write SIMD values as ubyte16 even without .array for
greater uniformity in debugging code.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=10444


bearophile_hugs eml.cc changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|enhancement                 |normal



It's kind of needed to print arrays of simd vectors:


import std.stdio: writeln;
import core.simd: int4;
void main() {
    int4[] v = [[1, 2, 3, 4], [5, 6, 7, 8]];
    writeln(v[0].array, " ", v[1].array); // OK
    writeln(v); // error
}

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