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gdb fails with “Unable to find Mach task port for process-id” error

...Self Signed Root”, set “Certificate Type” to “Code Signing” and select the “Let me override defaults”. Click “Continue”. You might want to extend the predefined 365 days period to 3650 days. Click several times on “Continue” until you get to the “Specify a Location For The Ce...
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C# switch statement limitations - why?

...values of switch labels are distinct (so that only one switch block can be selected for a given switch-expression) Consider this code example in the hypothetical case that non-constant case values were allowed: void DoIt() { String foo = "bar"; Switch(foo, foo); } void Switch(String val1...
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How do I stop Chrome from yellowing my site's input boxes?

...e property to none. input[type="text"], input[type="password"], textarea, select { outline: none; } In cases where the browser may add a background color as well this can be fixed by something like :focus { background-color: #fff; } ...
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The type or namespace name 'Objects' does not exist in the namespace 'System.Data'

...ontext.tt and be nested under your edmx file in Solution Explorer. You can select the templates in Solution Explorer and press the Del key to delete them. Note: In Web Site projects the templates will not be nested under your edmx file, but listed alongside it in Solution Explorer. Note: In VB.N...
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Is there a way to get the XPath in Google Chrome?

...asking "how to get an xpath string for an element?", rather than "how do i select by xpath?" wasn't he? – Max Williams Jan 3 '12 at 11:05 3 ...
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Java JDBC - How to connect to Oracle using Service Name instead of SID

...ment = myConnection.createStatement(); String readRecordSQL = "select * from sa_work_order where WORK_ORDER_NO = '1503090' "; ResultSet myResultSet = sqlStatement.executeQuery(readRecordSQL); while (myResultSet.next()) { System.out.println("Recor...
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内存优化总结:ptmalloc、tcmalloc和jemalloc - 操作系统(内核) - 清泛网 - ...

... 总共32个vcpu。 16个table,每个5M row。 OLTP_RO测试包含5个select查询:select_ranges, select_order_ranges, select_distinct_ranges, select_sum_ranges, 可以看到在多核心或者多线程的场景下, jemalloc和tcmalloc带来的tps增加非常明显。 参考资料 glibc...
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How to use base class's constructors and assignment operator in C++?

...No operator=() defined }; class Derived : public ImplicitBase { const char* name_; public: Derived& operator=(const Derived& d) { ImplicitBase::operator=(d); // Call compiler generated operator= name_ = strdup(d.name_); return *this; } }; ...
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Migrating from JSF 1.2 to JSF 2.0

...ribute of the @ManagedBean, then it will default to classname with the 1st char lowercased. @ManagedBean @RequestScoped public class SomeBean {} In this particular example, it will be #{someBean}. Any <managed-property> can be annotated using @ManagedProperty: @ManagedProperty("#{otherBe...
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How can I return the current action in an ASP.NET MVC view?

...tion("home", "index", ViewContext)) { @:class="selected" }>@Html.ActionLink("Home", "Index", "Home")</li> <li @if(MyMvcApp.Helpers.LocationHelper.IsCurrentControllerAndAction("account","logon", ViewContext)) { ...