The great merge

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@4141 626c5289-ae23-0410-ae9c-e8d60b6d4f22

SWIG/Examples/mzscheme/check.list

@@ -0,0 +1,3 @@
+# see top-level Makefile.in
+multimap
+simple

SWIG/Examples/mzscheme/multimap/Makefile

@@ -0,0 +1,13 @@
+TOP        = ../..
+SWIG       = $(TOP)/../swig
+SRCS       = example.c
+TARGET     = example
+INTERFACE  = example.i
+SWIGOPT    = 
+all::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' mzscheme
+clean::
+	$(MAKE) -f $(TOP)/Makefile mzscheme_clean
+
+check: all

SWIG/Examples/mzscheme/multimap/example.c

@@ -0,0 +1,53 @@
+/* File : example.c */
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+/* Compute the greatest common divisor of positive integers */
+int gcd(int x, int y) {
+  int g;
+  g = y;
+  while (x > 0) {
+    g = x;
+    x = y % x;
+    y = g;
+  }
+  return g;
+}
+
+int gcdmain(int argc, char *argv[]) {
+  int x,y;
+  if (argc != 3) {
+    printf("usage: gcd x y\n");
+    return -1;
+  }
+  x = atoi(argv[1]);
+  y = atoi(argv[2]);
+  printf("gcd(%d,%d) = %d\n", x,y,gcd(x,y));
+  return 0;
+}
+
+int count(char *bytes, int len, char c) {
+  int i;
+  int count = 0;
+  for (i = 0; i < len; i++) {
+    if (bytes[i] == c) count++;
+  }
+  return count;
+}
+
+void capitalize(char *str, int len) {
+  int i;
+  for (i = 0; i < len; i++) {
+    str[i] = toupper(str[i]);
+  }
+}
+
+void circle(double x, double y) {
+  double a = x*x + y*y;
+  if (a > 1.0) {
+    printf("Bad points %g, %g\n", x,y);
+  } else {
+    printf("Good points %g, %g\n", x,y);
+  }
+}

SWIG/Examples/mzscheme/multimap/example.i

@@ -0,0 +1,81 @@
+/* File : example.i */
+%module example
+%include exception.i
+%include typemaps.i
+
+extern int    gcd(int x, int y);
+
+%typemap(mzscheme,in) (int argc, char *argv[]) {
+  int i;
+  Scheme_Object **elms;
+  if (!SCHEME_VECTORP($input)) {
+    scheme_wrong_type("$name","vector",$argnum,argc,argv);
+  }
+  $1 = SCHEME_VEC_SIZE($input);
+  elms = SCHEME_VEC_ELS($input);
+  if ($1 == 0) {
+    scheme_wrong_type("$name","vector",$argnum,argc,argv);
+  }
+  $2 = (char **) malloc(($1+1)*sizeof(char *));
+  for (i = 0; i < $1; i++) {
+    if (!SCHEME_STRINGP(elms[i])) {
+      free($2);
+      scheme_wrong_type("$name","vector",$argnum,argc,argv);      
+    }
+    $2[i] = SCHEME_STR_VAL(elms[i]);
+  }
+  $2[i] = 0;
+}
+
+%typemap(mzscheme,freear) (int argc, char *argv[]) {
+  free($2);
+}
+extern int gcdmain(int argc, char *argv[]);
+
+%typemap(mzscheme,in) (char *bytes, int len) {
+  if (!SCHEME_STRINGP($input)) {
+     scheme_wrong_type("$name","string",1,argc,argv);
+  }	
+  $1 = SCHEME_STR_VAL($input);
+  $2 = SCHEME_STRLEN_VAL($input);
+}
+
+extern int count(char *bytes, int len, char c);
+
+
+/* This example shows how to wrap a function that mutates a string */
+
+%typemap(mzscheme,in) (char *str, int len) {
+  if (!SCHEME_STRINGP($input)) {
+     scheme_wrong_type("$name","string",1,argc,argv);
+  }	
+  $2 = SCHEME_STRLEN_VAL($input);
+  $1 = (char *) malloc($2+1);
+  memmove($1,SCHEME_STR_VAL($input),$2);
+}
+
+/* Return the mutated string as a new object.  */
+
+%typemap(mzscheme,argout) (char *str, int len) {
+   Scheme_Object *s;
+   s = scheme_make_sized_string($1,$2,1);
+   SWIG_APPEND_VALUE(s);
+   free($1);
+}   
+
+extern void capitalize(char *str, int len);
+
+/* A multi-valued constraint.  Force two arguments to lie
+   inside the unit circle */
+
+%typemap(check) (double cx, double cy) {
+   double a = $1*$1 + $2*$2;
+   if (a > 1.0) {
+	SWIG_exception(SWIG_ValueError,"$1_name and $2_name must be in unit circle");
+        return NULL;
+   }
+}
+
+extern void circle(double cx, double cy);
+
+

SWIG/Examples/mzscheme/multimap/example.scm

@@ -0,0 +1,27 @@
+;; run with mzscheme -r example.scm
+
+(load-extension "example.so")
+
+; Call the GCD function
+
+(define x 42)
+(define y 105)
+(define g (gcd x y))
+
+(display "The gcd of ")
+(display x)
+(display " and ")
+(display y)
+(display " is ")
+(display g)
+(newline)
+
+;  Call the gcdmain() function
+(gcdmain #("gcdmain" "42" "105"))
+
+
+(display (count "Hello World" #\l))
+(newline)
+
+(display (capitalize "hello world"))
+(newline)

SWIG/Examples/mzscheme/simple/.cvsignore

@@ -0,0 +1 @@
+example_wrap.c

SWIG/Examples/mzscheme/simple/Makefile

@@ -8,6 +8,6 @@ all::
 	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
 	SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' mzscheme
 clean::
-	rm -f *_wrap* *.o core *~ *.so
+	$(MAKE) -f $(TOP)/Makefile mzscheme_clean
 
 check: all

SWIG/Examples/mzscheme/std_vector/.cvsignore

@@ -0,0 +1 @@
+example_wrap.cxx

SWIG/Examples/mzscheme/std_vector/Makefile

@@ -0,0 +1,19 @@
+TOP        = ../..
+SWIG       = $(TOP)/../swig
+SRCS       = 
+TARGET     = example
+INTERFACE  = example.i
+SWIGOPT    = 
+
+GPP        = `which g++`
+MZC        = test -n "/usr/bin/mzc" && /usr/bin/mzc
+
+all::
+	$(SWIG) -mzscheme -c++ $(SWIGOPT) $(INTERFACE)
+	$(MZC) --compiler $(GPP) ++ccf "-I." --cc example_wrap.cxx
+	$(MZC) --linker $(GPP) --ld $(TARGET).so example_wrap.o 
+	
+clean:
+	$(MAKE) -f $(TOP)/Makefile mzscheme_clean
+
+check: all

SWIG/Examples/mzscheme/std_vector/example.h

@@ -0,0 +1,25 @@
+/* File : example.h */
+
+#include <vector>
+#include <algorithm>
+#include <functional>
+#include <numeric>
+
+double average(std::vector<int> v) {
+    return std::accumulate(v.begin(),v.end(),0.0)/v.size();
+}
+
+std::vector<double> half(const std::vector<double>& v) {
+    std::vector<double> w(v);
+    for (unsigned int i=0; i<w.size(); i++)
+        w[i] /= 2.0;
+    return w;
+}
+
+void halve_in_place(std::vector<double>& v) {
+    // would you believe this is the same as the above?
+    std::transform(v.begin(),v.end(),v.begin(),
+                   std::bind2nd(std::divides<double>(),2.0));
+}
+
+

SWIG/Examples/mzscheme/std_vector/example.i

@@ -0,0 +1,17 @@
+/* File : example.i */
+%module example
+
+%{
+#include "example.h"
+%}
+
+%include stl.i
+/* instantiate the required template specializations */
+namespace std {
+    %template(IntVector)    vector<int>;
+    %template(DoubleVector) vector<double>;
+}
+
+/* Let's just grab the original header file here */
+%include "example.h"
+

SWIG/Examples/mzscheme/std_vector/example.scm

@@ -0,0 +1,54 @@
+;; run with mzscheme -r example.scm
+
+(load-extension "example.so")
+
+; repeatedly invoke a procedure with v and an index as arguments
+(define (with-vector v proc size-proc)
+  (let ((size (size-proc v)))
+    (define (with-vector-item v i)
+      (if (< i size)
+          (begin
+            (proc v i)
+            (with-vector-item v (+ i 1)))))
+    (with-vector-item v 0)))
+
+(define (with-intvector v proc)
+  (with-vector v proc intvector-length))
+(define (with-doublevector v proc)
+  (with-vector v proc doublevector-length))
+
+(define (print-doublevector v)
+  (with-doublevector v (lambda (v i) (display (doublevector-ref v i)) 
+                                     (display " ")))
+  (newline))
+
+
+; Call average with a Scheme list...
+
+(display (average '(1 2 3 4)))
+(newline)
+
+; ... or a wrapped std::vector<int>
+(define v (new-intvector 4))
+(with-intvector v (lambda (v i) (intvector-set! v i (+ i 1))))
+(display (average v))
+(newline)
+(delete-intvector v)
+
+; half will return a Scheme vector.
+; Call it with a Scheme vector...
+
+(display (half #(1 1.5 2 2.5 3)))
+(newline)
+
+; ... or a wrapped std::vector<double>
+(define v (new-doublevector))
+(map (lambda (i) (doublevector-push! v i)) '(1 2 3 4))
+(display (half v))
+(newline)
+
+; now halve a wrapped std::vector<double> in place
+(halve-in-place v)
+(print-doublevector v)
+(delete-doublevector v)
+