[cairo-bugs] [Bug 5561] New: cairo_set_dash does not work properly when the first dash length is 0

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https://bugs.freedesktop.org/show_bug.cgi?id=5561          
     
           Summary: cairo_set_dash does not work properly when the first
                    dash length is 0
           Product: cairo
           Version: 1.1.1
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: cworth at cworth.org
        ReportedBy: jeff at infidigm.net
         QAContact: cairo-bugs at cairographics.org


calling somthing like cairo_set_dash(cr, (double[]){0, 4}, 2, 0.0) causes
_cairo_stroker_line_to_dashed to call _cairo_stroker_add_leading_cap without
initializing sub_start. This can be seen by running valgrind and getting a
failure further down this call chain.          
     
     
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