我正在尝试使用第3方库中的函数,并需要一个输入流对象,其中传输二进制文件数据。签名看起来像这样:doSomething(conststd::string&...,conststd::string&...,std::istream&aData,conststd::string&...,conststd::map*...,long...,bool...);由于我无法更改/更改此第3方库/函数,因此我必须适应“我的”代码。在调用位置,我有一个std::vector,它包含预期在istream对象中传递的数据。目前,我通过迭代它并使用我强烈怀疑可能有更有效/更方便的方法,但到目前为止找不到任何
'ImportsSystem.Data.SqlServerCeImportsSystem.Text.RegularExpressionsImportsSystem.Data.OleDbPublicClassForm1DimjiuyueAsString()={"创","出","利","民","申","书","士","得","撒上","撒下","王上","王下","代上","代下","拉","尼","斯","伯","诗","箴","传","歌","赛","耶","哀","结","但","何","珥","摩","俄","拿","弥","鸿","哈","番","该","亚","玛"}Dimxinyue
我经常发现自己想要为struct创建一个比较器对象或class它只是提取该类的一个成员并执行通常的比较。例如:structstudent{intid;std::stringname;};//sortbyIDstd::sort(students.begin(),students.end(),[](conststudent&l,conststudent&r){returnl.id那里有很多样板文件,特别是因为我们必须重复l的声明。和r.标准库中有没有一种方法可以基于返回要比较的对象的“提取器”函数创建比较器?类似于:std::sort(students.begin(),students.e