Tmux etc

sbcl/.quicklisp/dists/quicklisp/software/cffi_0.20.1/examples/examples.lisp

@@ -0,0 +1,78 @@
+;;;; -*- Mode: lisp; indent-tabs-mode: nil -*-
+;;;
+;;; examples.lisp --- Simple test examples of CFFI.
+;;;
+;;; Copyright (C) 2005-2006, James Bielman  <jamesjb@jamesjb.com>
+;;;
+;;; Permission is hereby granted, free of charge, to any person
+;;; obtaining a copy of this software and associated documentation
+;;; files (the "Software"), to deal in the Software without
+;;; restriction, including without limitation the rights to use, copy,
+;;; modify, merge, publish, distribute, sublicense, and/or sell copies
+;;; of the Software, and to permit persons to whom the Software is
+;;; furnished to do so, subject to the following conditions:
+;;;
+;;; The above copyright notice and this permission notice shall be
+;;; included in all copies or substantial portions of the Software.
+;;;
+;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+;;; NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+;;; DEALINGS IN THE SOFTWARE.
+;;;
+
+(defpackage #:cffi-examples
+  (:use #:cl #:cffi)
+  (:export
+   #:run-examples
+   #:sqrtf
+   #:getenv))
+
+(in-package #:cffi-examples)
+
+;; A simple libc function.
+(defcfun "sqrtf" :float
+  (n :float))
+
+;; This definition uses the STRING type translator to automatically
+;; convert Lisp strings to foreign strings and vice versa.
+(defcfun "getenv" :string
+  (name :string))
+
+;; Calling a varargs function.
+(defun sprintf-test ()
+  "Test calling a varargs function."
+  (with-foreign-pointer-as-string ((buf buf-size) 255)
+    (foreign-funcall
+     "snprintf" :pointer buf :int buf-size
+     :string "%d %f #x%x!" :int 666
+     :double (coerce pi 'double-float)
+     :unsigned-int #xcafebabe
+     :void)))
+
+;; Defining an emerated type.
+(defcenum test-enum
+  (:invalid 0)
+  (:positive 1)
+  (:negative -1))
+
+;; Use the absolute value function to test keyword/enum translation.
+(defcfun ("abs" c-abs) test-enum
+  (n test-enum))
+
+(defun cffi-version ()
+  (asdf:component-version (asdf:find-system 'cffi)))
+
+(defun run-examples ()
+  (format t "~&;;; CFFI version ~A on ~A ~A:~%"
+          (cffi-version) (lisp-implementation-type)
+          (lisp-implementation-version))
+  (format t "~&;; shell:             ~A~%" (getenv "SHELL"))
+  (format t "~&;; sprintf test:      ~A~%" (sprintf-test))
+  (format t "~&;; (c-abs :positive): ~A~%" (c-abs :positive))
+  (format t "~&;; (c-abs :negative): ~A~%" (c-abs :negative))
+  (force-output))