Some garbage collection algorithms require significant cooperation from the compiler or runtime environment, such as updating reference counts whenever a pointer assignment is performed.
一些垃圾收集算法要求编译器或者运行时环境的重要配合，如当进行指针分配时更新引用计数。
Pointer assignment should only be performed between other Pointers or variables of type long.
指针赋值只应在其他指针或长型变量之间执行。
Pointer assignment should only be performed between other Pointers or variables of type long.
指针赋值只应在其他指针或长型变量之间执行。
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