Objective-C programming using mingw32 in Windows

Posted in objective-c by Prabhu Beeman on May 8, 2010

Following are the steps you need to follow to setup the environment and run your first program

S.No	Description	Link/Path/Command	Note
1	Install mingw32 and its libraries	http://www.gnustep.org/experience/Windows.html	Make sure you install the first two packages provided in the link (in the same order mentioned)
2	Open mingw32	Start –> Programs –> GNUStep –> Shell
3	Write our first program	The command prompt location points to the following path: %GNUStep_Directoy%/home/your_name/ (“D:\GNUstep\home\Prabhu B” for me)	FirstProgram.h FirstProgram.m (Refer below for the content of the .h and .m files)
4	Compile the program	gcc -o FirstProgram FirstProgram.m –I /GNUstep/System/Library/Headers/ -L /GN Ustep/System/Library/Libraries -lobjc -lgnustep-base -enable-auto-import -fconstant-string-class=NSConstantString
5	Run the program	./FirstProgram

FirstProgram.h	FirstProgram.m
#import<Foundation/NSObject.h> @interface FirstProgram:NSObject { } -(int) addNumber1 : (int) x withNumber2 : (int) y; @end	#import "FirstProgram.h" #import <Foundation/NSString.h> @implementation FirstProgram -(int)addNumber1: (int) x withNumber2: (int) y { //add return(x + y); } main() { FirstProgram *first = [[FirstProgram alloc] init]; int total = [first addNumber1:20 withNumber2:30]; NSLog(@"Total=%d",total); } @end

FirstProgram.h

FirstProgram.m

#import<Foundation/NSObject.h>

@interface FirstProgram:NSObject {

}

-(int) addNumber1 : (int) x withNumber2 : (int) y;

@end

#import "FirstProgram.h"
#import <Foundation/NSString.h>

@implementation FirstProgram

-(int)addNumber1: (int) x withNumber2: (int) y {

       //add
        return(x + y);
}
main() {
        FirstProgram *first = [[FirstProgram alloc] init];
        int total = [first addNumber1:20 withNumber2:30];
        NSLog(@"Total=%d",total);
}
@end

Tagged with: objective-c environment setup

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