Check if UITextFields are empty using Objective-C

gistfile1.m

- (BOOL)emptyTextFields:(id)toCompare, ...
{
    va_list args;
    va_start(args, toCompare);
    
    id value = nil;
    BOOL match = NO;
    while ((value = va_arg(args,id)))
        if([toCompare isKindOfClass:[NSString class]] && [value isKindOfClass:[UITextField class]])
            if([[(UITextField *)value text] isEqualToString:toCompare])
                match = YES;
    
    va_end(args);
    return match;
}

/* Usage */

if( [self emptyTextFields:@"", // <-- compare to
                   sexo,
                   estadoFamiliar,
                   procedenciaFondos,
                   usoFondos,
                   profesion,
                   telefono,
                   nil] ) // <-- nil to finish
        return;
else
        NSLog ( @"valid UITextFields" );