[Webkit-unassigned] [Bug 106239] New: LayoutUnit(unsigned long long value) compile failure

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106239

           Summary: LayoutUnit(unsigned long long value) compile failure
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: eric.carlson at apple.com
                CC: rniwa at webkit.org, webkit-bug-importer at group.apple.com


The LayoutUnit constructor which takes an unsigned long long fails to compile on some platforms when SATURATED_LAYOUT_ARITHMETIC is not defined because storing the result of ('unsigned long long' * 'int') into an int loses precision:

Source/WebCore/platform/LayoutUnit.h:89:25: error: implicit conversion loses integer precision: 'unsigned long long' to 'int' [-Werror,-Wshorten-64-to-32]
        m_value = value * kEffectiveFixedPointDenominator;
                ~ ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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