Initial commit of Octave module.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk@10290 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/octave/contract/Makefile

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+TOP        = ../..
+SWIG       = $(TOP)/../preinst-swig
+CXXSRCS    = example.c
+TARGET     = example
+INTERFACE  = example.i
+LIBS       = -lm
+SWIGOPT    = 
+
+all::
+	$(MAKE) -f $(TOP)/Makefile $(SWIGLIB) CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' octave_cpp
+
+static::
+	$(MAKE) -f $(TOP)/Makefile $(SWIGLIB) CXXSRCS='$(CXXSRCS)' SWIG='$(SWIG)' \
+	SWIGOPT='$(SWIGOPT)' TARGET='myoctave' INTERFACE='$(INTERFACE)' octave_cpp_static
+
+clean::
+	$(MAKE) -f $(TOP)/Makefile octave_clean
+	rm -f $(TARGET).py
+
+check: all

Examples/octave/contract/example.c

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+/* File : example.c */
+
+/* A global variable */
+double Foo = 3.0;
+
+/* 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 fact(int n) {
+  if (n <= 0) return 1;
+  return n*fact(n-1);
+}
+
+

Examples/octave/contract/example.i

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+/* File : example.i */
+%module example
+
+%contract gcd(int x, int y) {
+require:
+	x >= 0;
+	y >= 0;
+}
+
+%contract fact(int n) {
+require:
+	n >= 0;
+ensure:
+	fact >= 1;
+}
+
+%inline %{
+extern int    gcd(int x, int y);
+extern int    fact(int n);
+extern double Foo;
+%}

Examples/octave/contract/runme.m

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+# file: runme.m
+
+example 
+
+# Call our gcd() function
+
+x = 42;
+y = 105;
+g = example.gcd(x,y);
+printf("The gcd of %d and %d is %d\n",x,y,g);
+
+# Manipulate the Foo global variable
+
+# Output its current value
+printf("Foo = %f\n", example.cvar.Foo);
+
+# Change its value
+example.cvar.Foo = 3.1415926;
+
+# See if the change took effect
+printf("Foo = %f\n", example.cvar.Foo);
+