lispdoc - results for fboundp

(fboundp name)

Function: Return true if name has a global function definition.

Example:

(defun safe-symbol-function (sym)
  "If the symbol has a bound function,
   return the bound function, otherwise nil."
  (if (and sym (fboundp sym))
      (symbol-function sym)
      nil))

Mentioned in:
CLtL2 - 11.6. Built-in Packages
CLtL2 - 4.8. Type Conversion Function
CLtL2 - 5.1.2. Variables
CLtL2 - 7.1. Constants and Variables
CLtL2 - 7.1. Reference
HyperSpec - Function FBOUNDP
On Lisp - Chapter _28