Class function does not link

[pyfgcr]

I'm trying to create a class with some function about file, like this:

pes.h

#ifndef PES_H;
#define PES_H
const unsigned BUF_SIZ=1024;

class File_element											
	{
	public:
	FILE *fin,*fout;
	void check();
	unsigned char buf[BUF_SIZ];
	size_t size;
	unsigned int fin_size, fout_size ;                          			
	unsigned int bp ;										
	File_element();
	};
#endif 

pes_supplement.cpp

#include "pes.h"
#include "stdafx.h"
#include <cstdlib>	
File_element::File_element()
{
	bp=0;
	fin_size=fout_size=0;
}

void File_element::check()
{
	if (fin==NULL) {printf("Input file cannot open"); exit(EXIT_FAILURE);
	if (fin==NULL) {printf("Output file cannot open"); exit(EXIT_FAILURE);
}

But the complier complaint:
1>f:\vz test\vz test\pes_supplement.cpp(7): error C2653: 'File_element' : is not a class or namespace name
1>f:\vz test\vz test\pes_supplement.cpp(8): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int
I don't understand why do these errors occur.

[ne555]

IIRC stdafx.h must be first.
(that in the case that you need that VS especific header that stdafx.h is)

that

[codewalker]

First thing I notice is you are using C, C++ mix.
For file handling in C++ use fstream header and ifstream and ofstream for input and out from/to files.

Instead of printf use cout, you need to include header iostream for it to work.
About the errors: I dont see any class related code at line 7 and function declaration/definition at line 8.
Is the source different from the one posted here?

Looking at the code I dont see apparent cause except what ne555 pointed out

[pyfgcr]

Oh I forget. I delete lines for you guys easier to see. I compile it again

1>f:\vz test\vz test\pes_supplement.cpp(4): error C2653: 'File_element' : is not a class or namespace name
1>f:\vz test\vz test\pes_supplement.cpp(5): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int

After put stdafx first, things work normal again. Thanks ne555 for helping.