va_list 's

**Patrick** · 10-30-2002

I simply can't figure them out.

Please don't criticize my code beside the va_list stuff... it doesn't really matter to me.

This is in a template class (template <int N>):

Code:

CPolygon (CVertex first, ...)
	{
		if (N <= 0)
		{
			m_iNumVertices = 0;

			return;
		}

		m_iNumVertices = N;

		m_Vertices[0] = first;

		va_list args;
		va_start (args, first);

		for (int i = 1; i < m_iNumVertices; i++)
			m_Vertices[i] = (CVertex) va_arg (args, CVertex);

		va_end (args);
	}

[code][/code]tagged by Salem

**Trauts** · 10-30-2002

code tags...

**Patrick** · 10-30-2002

sorry, do you mean html tags?

**JoeSixpack** · 10-31-2002

Try something like -

Code:

#include <cstdio>
#include <cstdarg>

template <int N>
class CInt
{
private:
	int m_iNumInts;
	int m_Ints[50];
public:
	CInt<N>(int first, ...)
	{
		m_iNumInts = N;
				
		va_list args;
		va_start (args, first);

		for (int i = 0; i < m_iNumInts; i++)
		{
			m_Ints[i] = first;
			first = va_arg (args, int);
		}

		va_end (args);
	}

};

**Patrick** · 10-31-2002

Well, originally, this is how I was testing it.

I know it looks bad, but it's all part of my scheme of things.

CPolygon <2> test (CVertex (CFloat3f (1, 1, 1)), CVertex (CFloat3f (10, 10, 10)));

That did NOT crash (as opposed to my next test), but didn't work.

Now, this crashes:

CVertex verts[2];
verts[0].SetPosition (CFloat3f (1, 1, 1));
verts[1].SetPosition (CFloat3f (10, 10, 10));

CPolygon <2> test (verts[0], verts[1]);

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