This function verifies that the address provided is in valid memory.

这个函数校验有效内存中提供的地址。

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For more information on valid memory configurations, please see the system documentation on the technical support web site.

有关有效的内存配置的详细信息，请参阅技术支持Web站点上的系统说明文件。

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As mentioned above, the edge of mapped memory — last valid address — is often known as the system break or the current break.

如前所述，被映射的内存的边界(最后一个有效地址)常被称为系统中断点或者当前中断点。

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