• d-bugmail puremagic.com (28/28) Sep 01 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4783
• d-bugmail puremagic.com (10/10) Sep 01 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4783
• d-bugmail puremagic.com (7/8) Sep 01 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4783
• d-bugmail puremagic.com (7/7) Sep 01 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4783
• d-bugmail puremagic.com (8/8) Sep 01 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4783
• d-bugmail puremagic.com (8/10) Sep 01 2010 http://d.puremagic.com/issues/show_bug.cgi?id=4783

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=4783

           Summary: atomicOp!"^^" doesn't work b/c it doesn't have access
                    to std.math
           Product: D
           Version: D2
          Platform: Other
        OS/Version: Windows
            Status: NEW
          Severity: normal
          Priority: P2
         Component: druntime
        AssignedTo: sean invisibleduck.org
        ReportedBy: dsimcha yahoo.com



import core.atomic;

void main() {
    int num1 = 1;
    int num2 = 1;
    int res = atomicOp!"^^"(num1, num2);
}


Errors:

d:\dmd2\windows\bin\..\..\src\druntime\import\core\atomic.di(96): Error: must
import std.math to use ^^ operator
d:\dmd2\windows\bin\..\..\src\druntime\import\core\atomic.di(6): Error:
template instance core.atomic.atomicOp!("^^",int,int) error instantiating

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=4783


Don <clugdbug yahoo.com.au> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |clugdbug yahoo.com.au



That's correct. You need to import std.math if you want to use ^^.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=4783





 That's correct. You need to import std.math if you want to use ^^.

Oh sorry. Misunderstood. Yes, ^^ should not be used anywhere in core.*

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=4783




Then if ^^ isn't going to be usable w/o importing std.math anytime soon, I
guess we need to get rid of it from core.atomic.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=4783




...or, since the whole thing is based on doing the operation and CASing back
the result, we could make a version of atomicOp that takes an arbitrary lambda
expression.

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d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=4783





 Then if ^^ isn't going to be usable w/o importing std.math anytime soon, I
 guess we need to get rid of it from core.atomic.

Yes. Something so high level has no business being in core. pow() for floating
point exponents is a *huge* function.

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