As a result, the 20 byte block allocated by the func function is lost and results in a memory leak.

结果，func函数所分配的20个字节的块就丢失了，并导致了内存泄漏。

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Finally, it calls the overloaded function func with char type arguments.

最后，调用使用char类型的参数的重载函数func。

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EXSLT also defines an extension instruction func: function with identical syntax to XSL: function. (If you already use func: function, you should switch over when you adopt XSLT 2.0.)

EXSLT也定义了扩展指令func： function，语法与xsl： function相同(如果使用过func： function，采用XSLT 2.0的时候应该改过来)。

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