XLISP filep

Nyquist / XLISP 2.0 - Contents | Tutorials | Examples | Reference

# filep

Type: | - | Lisp function (closure)
Source: | - | xlinit.lsp

## Syntax

(filep expr)
  expr - an Lisp expression
  returns - T if expr is of type FPTR, NIL otherwise

In Nyquist, 'filep' is implemented as a Lisp function:

    (defun filep (x)
      (eq (type-of x) 'FPTR))

## Description

The 'filep' function returns T if 'expr' is of type FPTR, NIL otherwise

## Examples

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Nyquist / XLISP 2.0 - Contents | Tutorials | Examples | Reference