logic problem

//removes comments from the file and prints to the other file

Code:

#include<stdio.h>
void main(int argc,char *argv[])
{
	FILE *in,*out;
	
	char ch1,ch2;
	
	int f=0;
	
	in=fopen(argv[1],"r");
	
	out=fopen(argv[2],"w");
	
	while(!feof(in))
	{
		ch1=getc(in);
		
		if(ch1=='/')
		{
			
			if((ch2=getc(in))=='/')
			{
				
				while((ch2=getc(in))!='\n')
				{
					;
				}
			}
			
			else
			
			if(ch2=='*')
			{
				
				while((ch2=getc(in))!=EOF)
				{
					
					if(ch2=='*')
					{
						if((ch2=getc(in))=='/')
						f=1;
					}
					
					if(f==1)
					break;
				}
			}
		}
		
		else
		{
			putc(ch1,out);
		}
	}
	fclose(in);
	fclose(out);
}