🚀 go-pugleaf

	and errorString is an NSString*.  The problem is that sometimes  
        I'd like to say

		ERROR(ERRORTYPE1, [NSString stringWithFormat:@"foo : %@",  
          [self bar]])

	so I can pass a string generated with printf-style formatting.   
        The problem is that the preprocessor chokes with something like :

       /CashierPayment.m:209: macro `ISLogError' used with too many (3) args

	apperantly concerned about the two commas, despite the fact that  
        one of them is, in reality, part of an expression that should (IMHO) be  
        treated as a single macro argument.

You can probably work around this problem by enclosing the second
argument to ERROR with a pair of parentheses:

	ERROR(ERRORTYPE1, ( [NSString ... , ... ] ));

-- Kresten

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