external/cffi.darcs/_darcs/pristine/tests/funcall.lisp

   1 ;;;; -*- Mode: lisp; indent-tabs-mode: nil -*-
   2 ;;;
   3 ;;; funcall.lisp --- Tests function calling.
   4 ;;;
   5 ;;; Copyright (C) 2005-2006, James Bielman  <jamesjb@jamesjb.com>
   6 ;;; Copyright (C) 2005-2007, Luis Oliveira  <loliveira@common-lisp.net>
   7 ;;;
   8 ;;; Permission is hereby granted, free of charge, to any person
   9 ;;; obtaining a copy of this software and associated documentation
  10 ;;; files (the "Software"), to deal in the Software without
  11 ;;; restriction, including without limitation the rights to use, copy,
  12 ;;; modify, merge, publish, distribute, sublicense, and/or sell copies
  13 ;;; of the Software, and to permit persons to whom the Software is
  14 ;;; furnished to do so, subject to the following conditions:
  15 ;;;
  16 ;;; The above copyright notice and this permission notice shall be
  17 ;;; included in all copies or substantial portions of the Software.
  18 ;;;
  19 ;;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  20 ;;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21 ;;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  22 ;;; NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
  23 ;;; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  24 ;;; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  25 ;;; OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  26 ;;; DEALINGS IN THE SOFTWARE.
  27 ;;;
  28
  29 (in-package #:cffi-tests)
  30
  31 ;;;# Calling with Built-In C Types
  32 ;;;
  33 ;;; Tests calling standard C library functions both passing and
  34 ;;; returning each built-in type.
  35
  36 ;;; Don't run these tests if the implementation does not support
  37 ;;; foreign-funcall.
  38 #-cffi-features:no-foreign-funcall
  39 (progn
  40
  41 (deftest funcall.char
  42     (foreign-funcall "toupper" :char (char-code #\a) :char)
  43   #.(char-code #\A))
  44
  45 (deftest funcall.int.1
  46     (foreign-funcall "abs" :int -100 :int)
  47   100)
  48
  49 (defun funcall-abs (n)
  50   (foreign-funcall "abs" :int n :int))
  51
  52 ;;; regression test: lispworks's %foreign-funcall based on creating
  53 ;;; and caching foreign-funcallables at macro-expansion time.
  54 (deftest funcall.int.2
  55     (funcall-abs -42)
  56   42)
  57
  58 (deftest funcall.long
  59     (foreign-funcall "labs" :long -131072 :long)
  60   131072)
  61
  62 #-cffi-features:no-long-long
  63 (deftest funcall.long-long
  64     (foreign-funcall "my_llabs" :long-long -9223372036854775807 :long-long)
  65   9223372036854775807)
  66
  67 (deftest funcall.float
  68     (foreign-funcall "my_sqrtf" :float 16.0 :float)
  69   4.0)
  70
  71 (deftest funcall.double
  72     (foreign-funcall "sqrt" :double 36.0d0 :double)
  73   6.0d0)
  74
  75 #+(and scl long-float)
  76 (deftest funcall.long-double
  77     (foreign-funcall "sqrtl" :long-double 36.0l0 :long-double)
  78   6.0l0)
  79
  80 (deftest funcall.string.1
  81     (foreign-funcall "strlen" :string "Hello" :int)
  82   5)
  83
  84 (deftest funcall.string.2
  85     (with-foreign-pointer-as-string (s 100)
  86       (setf (mem-ref s :char) 0)
  87       (foreign-funcall "strcpy" :pointer s :string "Hello" :pointer)
  88       (foreign-funcall "strcat" :pointer s :string ", world!" :pointer))
  89   "Hello, world!")
  90
  91 (deftest funcall.string.3
  92     (with-foreign-pointer (ptr 100)
  93       (lisp-string-to-foreign "Hello, " ptr 8)
  94       (foreign-funcall "strcat" :pointer ptr :string "world!" :string))
  95   "Hello, world!")
  96
  97 ;;;# Calling Varargs Functions
  98
  99 ;; The CHAR argument must be passed as :INT because chars are promoted
 100 ;; to ints when passed as variable arguments.
 101 (deftest funcall.varargs.char
 102     (with-foreign-pointer-as-string (s 100)
 103       (setf (mem-ref s :char) 0)
 104       (foreign-funcall "sprintf" :pointer s :string "%c" :int 65 :int))
 105   "A")
 106
 107 (deftest funcall.varargs.int
 108     (with-foreign-pointer-as-string (s 100)
 109       (setf (mem-ref s :char) 0)
 110       (foreign-funcall "sprintf" :pointer s :string "%d" :int 1000 :int))
 111   "1000")
 112
 113 (deftest funcall.varargs.long
 114     (with-foreign-pointer-as-string (s 100)
 115       (setf (mem-ref s :char) 0)
 116       (foreign-funcall "sprintf" :pointer s :string "%ld" :long 131072 :int))
 117   "131072")
 118
 119 ;;; There is no FUNCALL.VARARGS.FLOAT as floats are promoted to double
 120 ;;; when passed as variable arguments.  Currently this fails in SBCL
 121 ;;; and CMU CL on Darwin/ppc.
 122 (deftest funcall.varargs.double
 123     (with-foreign-pointer-as-string (s 100)
 124       (setf (mem-ref s :char) 0)
 125       (foreign-funcall "sprintf" :pointer s :string "%.2f"
 126                        :double (coerce pi 'double-float) :int))
 127   "3.14")
 128
 129 #+(and scl long-float)
 130 (deftest funcall.varargs.long-double
 131     (with-foreign-pointer-as-string (s 100)
 132       (setf (mem-ref s :char) 0)
 133       (foreign-funcall "sprintf" :pointer s :string "%.2Lf"
 134                        :long-double pi :int))
 135   "3.14")
 136
 137 (deftest funcall.varargs.string
 138     (with-foreign-pointer-as-string (s 100)
 139       (setf (mem-ref s :char) 0)
 140       (foreign-funcall "sprintf" :pointer s :string "%s, %s!"
 141                        :string "Hello" :string "world" :int))
 142   "Hello, world!")
 143
 144 ;;; See DEFCFUN.DOUBLE26.
 145 (deftest funcall.double26
 146     (foreign-funcall "sum_double26"
 147                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 148                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 149                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 150                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 151                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 152                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 153                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 154                      :double 3.14d0 :double 3.14d0 :double 3.14d0
 155                      :double 3.14d0 :double 3.14d0 :double)
 156   81.64d0)
 157
 158 ;;; See DEFCFUN.FLOAT26.
 159 (deftest funcall.float26
 160     (foreign-funcall "sum_float26"
 161                      :float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
 162                      :float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
 163                      :float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
 164                      :float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
 165                      :float 5.0 :float 5.0 :float 5.0 :float 5.0 :float 5.0
 166                      :float 5.0 :float)
 167   130.0)
 168
 169 ;;; Funcalling a pointer.
 170 (deftest funcall.f-s-p.1
 171     (foreign-funcall-pointer (foreign-symbol-pointer "abs") nil :int -42 :int)
 172   42)
 173
 174 ;;;# Namespaces
 175
 176 #-cffi-features:flat-namespace
 177 (deftest funcall.namespace.1
 178     (values (foreign-funcall ("ns_function" :library libtest) :boolean)
 179             (foreign-funcall ("ns_function" :library libtest2) :boolean))
 180   t nil)
 181
 182 ;;;# stdcall
 183
 184 #+(and cffi-features:x86 (not cffi-features:no-stdcall))
 185 (deftest funcall.stdcall.1
 186     (flet ((fun ()
 187              (foreign-funcall ("stdcall_fun@12" :cconv :stdcall)
 188                               :int 1 :int 2 :int 3 :int)))
 189       (loop repeat 100 do (fun)
 190             finally (return (fun))))
 191   6)
 192
 193 ) ;; #-cffi-features:no-foreign-funcall