*print-simple-array-specialized*

This variable is nil by default, and it governs the behavior of the printing of arrays. If the value is nil, then the printer prints the array in standard #NAdata format (the standard Common Lisp fashion). If the value of this variable is true, and the array being printed is an unsigned byte array where the byte size is 4, 8, 16, 32, or 64, or a signed byte arrays where the byte size is 8, 16, 32, or 64, then the printer extends the format to #{N}A{T}data format. This extension of the #A reader macro format is described in The #A reader macro in implementation.htm.

This variable is presented in the :printer-variables toplevel command, and can be queried or set there.

This variable has a required top-level binding to nil, so a listener thread will bind this variable to nil, thus not disturbing its value in other threads. (See *required-top-level-bindings*.)

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This page was not revised from the 9.0 page.
Created 2015.5.21.