http://d.puremagic.com/issues/show_bug.cgi?id=7430
Summary: opCmp doesn't support unordered value comparison.
Product: D
Version: D2
Platform: All
OS/Version: All
Status: NEW
Severity: blocker
Priority: P2
Component: DMD
AssignedTo: nob...@puremagic.com
ReportedBy: g...@boloneum.com
--- Comment #0 from Gor Gyolchanyan <g...@boloneum.com> 2012-02-03 08:55:39 PST
---
I have a structure, that represents an element of a range. Let's say a
character. That character can be invalid.
I need all comparison operators to return false of at least one of the
operands is invalid.
with opCmp, the expression a @ b is rewritten as a.opCmp(B) @ 0, which
doesn't allow me to define such a logic.
A rewrite of opCmp to test for exact
values -1, 0 and 1 would solve the problem, because any value beyond the
expected three would cause all comparisons to fail.
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