DouKaku?

//--------------------------------------------------------------------------------
//サーバ側のソースコード
//ソースファイルのエンコーディングはUTF-8にしてください
//--------------------------------------------------------------------------------

#import <Foundation/Foundation.h>

@interface Server : NSObject {
}
- (NSString*)priceString:(NSNumber*)listPrice :(NSNumber*)discount;
@end

@implementation Server
- (NSString*)insertComma:(unsigned)number {
	NSMutableString* result = [NSMutableString stringWithString:
			[[NSNumber numberWithUnsignedInt:number] stringValue]];
	
	int length = [result length];
	while ( length > 3 ) {
		length -= 3;
		[result insertString:@"," atIndex:length];
	}
	
	return result;
}

- (NSString*)priceString:(NSNumber*)listPrice :(NSNumber*)discount {
	NSString* format = [NSString stringWithUTF8String: "販売価格 %@円 (定価%@円から%d%%%%引き)"];
	
	unsigned unsignedListPrice = [listPrice unsignedIntValue];
	unsigned unsignedDiscount = [discount unsignedIntValue];
	unsigned unsignedRetailPrice = unsignedListPrice * ( 100 - unsignedDiscount ) / 100;
	
	NSString* listPriceString = [self insertComma:unsignedListPrice];
	NSString* retailPriceString = [self insertComma:unsignedRetailPrice];
	
	return [NSString stringWithFormat: format, retailPriceString, listPriceString, unsignedDiscount];
}
@end

int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
	
	Server* server = [[[Server alloc] init] autorelease];
	NSConnection* connection = [NSConnection defaultConnection];
	[connection setRootObject:server];
	
	if ( [connection registerName:@"server"] )
		[[NSRunLoop currentRunLoop] run];
	
    [pool release];
    return 0;
}

//--------------------------------------------------------------------------------
//クライアント側のソースコード
//コンパイルオプション：-std=gnu99
//--------------------------------------------------------------------------------

#import <Foundation/Foundation.h>

@protocol ServerProtocol
- (NSString*)priceString:(NSNumber*)listPrice :(NSNumber*)discount;
@end

int main (int argc, const char * argv[]) {
    NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
	
	NSDistantObject* distantObject = [NSConnection
			rootProxyForConnectionWithRegisteredName:@"server" host:nil];
	[distantObject setProtocolForProxy:@protocol(ServerProtocol)];
	
	NSNumber* listPrice = [NSNumber numberWithInt:2000];
	NSNumber* discount = [NSNumber numberWithInt:20];
	
	NSLog( @"start" );
	
	for ( int i = 0; i < 10000; i++ )
		[distantObject performSelector:@selector(priceString::) withObject:listPrice withObject:discount];
	
	NSLog( @"end" );
	
    [pool release];
    return 0;
}