mirror of https://github.com/swig/swig
Usual SWIG variables example - uses properties for global variable access
git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@4542 626c5289-ae23-0410-ae9c-e8d60b6d4f22
This commit is contained in:
William S Fulton
parent
1196effefb
commit
40e008cec5
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runme
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*_wrap.c
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*_wrap.cxx
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*.iltmp
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*.cs
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*.dll
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*.dsw
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*.exp
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*.lib
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*.ncb
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*.opt
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*.plg
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Release
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Debug
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TOP = ../..
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SWIG = $(TOP)/../swig
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SRCS = example.c
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TARGET = example
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INTERFACE = example.i
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SWIGOPT =
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CSHARPSRCS = *.cs
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CSHARPFLAGS= -o runme
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all:: csharp
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csharp::
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$(MAKE) -f $(TOP)/Makefile SRCS='$(SRCS)' SWIG='$(SWIG)' \
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SWIGOPT='$(SWIGOPT)' TARGET='$(TARGET)' INTERFACE='$(INTERFACE)' csharp
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$(MAKE) -f $(TOP)/Makefile CSHARPSRCS='$(CSHARPSRCS)' CSHARPFLAGS='$(CSHARPFLAGS)' csharp_compile
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clean::
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$(MAKE) -f $(TOP)/Makefile csharp_clean
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check: all
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/* File : example.c */
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/* I'm a file containing some C global variables */
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#include <stdio.h>
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#include <stdlib.h>
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#include "example.h"
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int ivar = 0;
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short svar = 0;
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long lvar = 0;
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unsigned int uivar = 0;
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unsigned short usvar = 0;
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unsigned long ulvar = 0;
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signed char scvar = 0;
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unsigned char ucvar = 0;
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char cvar = 0;
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float fvar = 0;
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double dvar = 0;
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char *strvar = 0;
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const char *cstrvar = 0;
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int *iptrvar = 0;
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char name[256] = "Dave";
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char path[256] = "/home/beazley";
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/* Global variables involving a structure */
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Point *ptptr = 0;
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Point pt = { 10, 20 };
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/* A variable that we will make read-only in the interface */
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int status = 1;
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/* A debugging function to print out their values */
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void print_vars() {
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printf("ivar = %d\n", ivar);
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printf("svar = %d\n", svar);
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printf("lvar = %ld\n", lvar);
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printf("uivar = %u\n", uivar);
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printf("usvar = %u\n", usvar);
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printf("ulvar = %lu\n", ulvar);
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printf("scvar = %d\n", scvar);
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printf("ucvar = %u\n", ucvar);
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printf("fvar = %g\n", fvar);
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printf("dvar = %g\n", dvar);
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printf("cvar = %c\n", cvar);
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printf("strvar = %s\n", strvar ? strvar : "(null)");
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printf("cstrvar = %s\n", cstrvar ? cstrvar : "(null)");
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printf("iptrvar = %x\n", iptrvar);
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printf("name = %s\n", name);
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printf("ptptr = %x (%d, %d)\n", ptptr, ptptr ? ptptr->x : 0, ptptr ? ptptr->y : 0);
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printf("pt = (%d, %d)\n", pt.x, pt.y);
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printf("status = %d\n", status);
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}
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/* A function to create an integer (to test iptrvar) */
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int *new_int(int value) {
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int *ip = (int *) malloc(sizeof(int));
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*ip = value;
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return ip;
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}
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/* A function to create a point */
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Point *new_Point(int x, int y) {
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Point *p = (Point *) malloc(sizeof(Point));
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p->x = x;
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p->y = y;
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return p;
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}
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char * Point_print(Point *p) {
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static char buffer[256];
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if (p) {
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sprintf(buffer,"(%d,%d)", p->x,p->y);
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} else {
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sprintf(buffer,"null");
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}
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return buffer;
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}
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void pt_print() {
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printf("(%d, %d)\n", pt.x, pt.y);
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}
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/* File: example.h */
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typedef struct {
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int x,y;
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} Point;
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/* File : example.i */
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%module example
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%{
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#include "example.h"
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%}
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/* Some global variable declarations */
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extern int ivar;
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extern short svar;
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extern long lvar;
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extern unsigned int uivar;
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extern unsigned short usvar;
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extern unsigned long ulvar;
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extern signed char scvar;
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extern unsigned char ucvar;
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extern char cvar;
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extern float fvar;
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extern double dvar;
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extern char *strvar;
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extern const char *cstrvar;
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extern int *iptrvar;
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extern char name[256];
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extern Point *ptptr;
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extern Point pt;
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/* Some read-only variables */
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%immutable;
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extern int status;
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extern char path[256];
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%mutable;
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/* Some helper functions to make it easier to test */
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extern void print_vars();
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extern int *new_int(int value);
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extern Point *new_Point(int x, int y);
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extern char *Point_print(Point *p);
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extern void pt_print();
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// This example illustrates global variable access from C#.
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using System;
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using System.Reflection;
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public class runme {
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public static void Main() {
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// Try to set the values of some global variables
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example.ivar = 42;
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example.svar = -31000;
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example.lvar = 65537;
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example.uivar = 123456;
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example.usvar = 61000;
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example.ulvar = 654321;
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example.scvar = -13;
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example.ucvar = 251;
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example.cvar = 'S';
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example.fvar = (float)3.14159;
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example.dvar = 2.1828;
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example.strvar = "Hello World";
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example.cstrvar = "Goodbye";
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example.iptrvar= example.new_int(37);
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example.ptptr = example.new_Point(37,42);
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example.name = "Bill";
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// Now print out the values of the variables
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Console.WriteLine( "Variables (values printed from C#)" );
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Console.WriteLine( "ivar =" + example.ivar );
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Console.WriteLine( "svar =" + example.svar );
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Console.WriteLine( "lvar =" + example.lvar );
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Console.WriteLine( "uivar =" + example.uivar );
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Console.WriteLine( "usvar =" + example.usvar );
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Console.WriteLine( "ulvar =" + example.ulvar );
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Console.WriteLine( "scvar =" + (int)example.scvar ); // cast for pnet compiler bug
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Console.WriteLine( "ucvar =" + (int)example.ucvar ); // cast for pnet compiler bug
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Console.WriteLine( "fvar =" + example.fvar );
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Console.WriteLine( "dvar =" + example.dvar );
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Console.WriteLine( "cvar =" + example.cvar );
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Console.WriteLine( "strvar =" + example.strvar );
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Console.WriteLine( "cstrvar =" + example.cstrvar );
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Console.WriteLine( "iptrvar =" + example.iptrvar );
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Console.WriteLine( "name =" + example.name );
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Console.WriteLine( "ptptr =" + example.ptptr + example.Point_print(example.ptptr) );
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Console.WriteLine( "pt =" + example.pt + example.Point_print(example.pt) );
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Console.WriteLine( "\nVariables (values printed from C)" );
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example.print_vars();
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Console.WriteLine( "\nNow I'm going to try and modify some read only variables" );
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Console.WriteLine( "\nChecking that the read only variables are readonly..." );
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example ex = new example();
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Type t = ex.GetType();
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Console.WriteLine( " 'path'" );
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PropertyInfo pi = t.GetProperty("path");
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if (pi.CanWrite)
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Console.WriteLine("Oh dear this variable is not read only\n");
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else
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Console.WriteLine("Good.");
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Console.WriteLine( " 'status'" );
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pi = t.GetProperty("status");
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if (pi.CanWrite)
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Console.WriteLine("Oh dear this variable is not read only");
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else
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Console.WriteLine("Good.");
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Console.WriteLine( "\nI'm going to try and update a structure variable.\n" );
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example.pt = example.ptptr;
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Console.WriteLine( "The new value is" );
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example.pt_print();
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Console.WriteLine( "You should see the value" + example.Point_print(example.ptptr) );
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}
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}
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