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Re: Bug in msc 7.1 ? [message #41326 is a reply to message #25709]

Sun, 01 December 2013 02:46

Lance
Messages: 527
Registered: March 2007

Contributor

Interesting. I remember the other day I encountered this problem:

extern "C" extern int array[10];

Compiles fine on VC++11 but will not be accepted in g++ 4.8

I have to revise it to something like

extern "C"{
extern int array[10];
}

I am not sure which is more standard-complying here though.

And I have another very interesting situation. Some predicate I passed to Upp::BiFindIndex(...) stops both VC++11 and g++ upto 4.8 with a compiling error of cannot find a match. And the only thing I need to do to fix it is insert a blank line (or subsequently remove it if there is one already), F5 and it will pass. This symptom is same on both compilers. A recent update on vc++ has fixed the issue but g++ remains the same.

Here is what I do. It can be easily simulated:

inline bool compare_person(const RecordSet::Record& r, int person_id)
{
	return r[0].As<int32>()<person_id;
}

String TrialBalanceCtrl::FormattedPerson(int person_id)
{
	String s;
[b]
	int i=BinFindIndex(person, person_id, compare_person);
	//above line will fail g++4.8 from time to time
	//simply add or remove a line after it will make
	//g++4.8 happy on the next compile pass.
[/b]
	if(i!=person.RecordCount() && person(i,0).As<int32>()==person_id)
	{
		s<<'['<<person(i,"code").As<String>()
			<<"] "<<person(i,"name").As<String>();
	}
	return s;
}

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