[LLVMbugs] [Bug 13330] New: "Comparing floating point with == or != is unsafe” warning shouldn 't trigger for comparisons against +/- inf

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=13330

             Bug #: 13330
           Summary: "Comparing floating point with == or != is unsafe”
                    warning shouldn't trigger for comparisons against +/-
                    inf
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: Frontend
        AssignedTo: unassignedclangbugs at nondot.org
        ReportedBy: clattner at apple.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified


The "Comparing floating point with == or != is unsafe" warning is a great
warning, but it triggers in some cases that don't make sense, and *are*
reasonable to use exact comparisons for, for example, detection of inf and
-inf.  See this thread on stack overflow for example:
http://stackoverflow.com/questions/11421756/weverything-yielding-comparing-floating-point-with-or-is-unsafe

-- 
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.