Set aside an area of scoped memory large enough to perform the error-handling operation.
预留出足够大的作用域存储区来执行错误处理操作。
Scoped memory is memory that has a lifetime defined by the developer of an application.
Scoped内存就是一块内存，它有一个由应用程序开发者定义的生命期。
Scoped memory is memory that has a lifetime defined by the developer of an application.
Scoped内存就是一块内存，它有一个由应用程序开发者定义的生命期。
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