test

Sun Studio 12：使用 dbx 调试程序

在函数内时启用处理程序 (in function)

要在函数内时启用处理程序，请键入：


<dbx> trace step -in foo

它等效于：


    # create handler in disabled state
    when step -disable { echo Stepped to $line; }
    t=$newhandlerid    # remember handler id
    when in foo {
     # when entered foo enable the trace
     handler -enable "$t"
     # arrange so that upon returning from foo,
     # the trace is disabled.
     when returns { handler -disable "$t"; };
    }