Initial C module file and simple example added.

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/branches/gsoc2008-maciekd@10501 626c5289-ae23-0410-ae9c-e8d60b6d4f22

Examples/c/simple/Makefile

@@ -0,0 +1,12 @@
+TOP        = ../..
+SWIG       = $(TOP)/../preinst-swig
+SRCS       = example.c
+TARGET     = example
+INTERFACE  = example.i
+EXEC       = main.c
+
+all::
+	$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
+	TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' EXEC='$(EXEC)' c
+
+

Examples/c/simple/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;
+}
+
+

Examples/c/simple/example.i

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+/* File : example.i */
+%module example
+
+%inline %{
+extern int gcd(int x, int y);
+%}

Examples/c/simple/main.c

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+#include <stdio.h>
+
+int main(int argc, char **argv) {
+  int a = 35;
+  int b = 15;
+  printf("GCD(%d, %d)=%d", a, b, gcd(a, b));
+}
+