The great merge

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

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)
+