Scieneer Common Lisp 1.3.9 online documentation digit-char-p char &optional radix [Function] If char is a digit in the specified radix, returns the fixnum for which that digit stands, else returns nil. The radix defaults to 10 (decimal).
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| digit-char-p char &optional radix | [Function] |
If char is a digit in the specified radix, returns the fixnum for which that digit stands, else returns nil. The radix defaults to 10 (decimal).