/*
	I/O demonstration program
*/
#include iolib.h
#include float.h
#include printf2.h
#include args.h
#include transcen.h
int infile,outfile;
char buf[80],chr,file[16];
int a,b,c,*d,line;
double e,f;
main()
{	       /* parse command line BEFORE opening any files */
	setargs();

	printf("hello, world\n");

	printf(" u: %u \n",-1);		/* u: 65535  */
	printf(" x: %x \n",-1);		/* x: ffff  */
	printf(" s: %s \n","hello");	/* s: hello  */
	printf(" c: %c \n",65);		/* c: A  */
					/* string I/O */
	puts("type a string: "); gets(buf); puts(buf);
					/* character I/O */
	puts("\ntype a character:"); chr=getchar();
	puts("  The character was "); putchar(chr); putchar(13);

	alpha();

	printf("The Fibbonacci sequence...%d, %d, %d, %d\n",
	1,1,2,3);
	printf("the square root of 2 is %15.12f\n",sqrt(2.));
	printf("more numbers: c=%12.3e, mp/me=%9.3e, hbar=%e\n",
	2.9979e8, 1836.11811, 1.054e-27);
	printf("-14=%e, -.0014=%e, 14=%e, .0014=%e\n",
		-14.,   -.0014,    14.,   .0014);
	line=0;
	&line;
	outf(1.);
	outf(1.1);
	outf(1.01);
	outf(1.001);
	outf(1.0001);
	outf(1.00001);
	outf(1.000001);
	outf(1.0000001);
	outf(1.00000001);
	outf(1.000000001);
	outf(1.0000000001);
	outf(1.00000000001);
	outf(1.000000000001);
	outf(1.0000000000001);
	b=17;
	c=6;
	d=&b;
	e=2.;
	f=3.;
	a=b;		out(a);
	a=e;		out(a);
	a=b|c;		out(a);
	a=b^c;		out(a);
	a=b&c;		out(a);
	putchar(13);
	a=b==c;		out(a);
	a=b==e;		out(a);
	a=e==b;		out(a);
	a=e==f;		out(a);
	a=b!=c;		out(a);
	putchar(13);
	a=b<c;		out(a);
	a=b<=c;		out(a);
	a=b>=c;		out(a);
	a=b>c;		out(a);
	a=b<<c;		out(a);
	putchar(13);
	a=b>>c;		out(a);
	a=b+c;		out(a);
	a=b+e;		out(a);
	a=e+b;		out(a);
	a=e+f;		out(a);
	putchar(13);
	a = b - c;
	a=b-c;		out(a);
	a=b*c;		out(a);
	a=b*e;		out(a);
	a=e*b;		out(a);
	a=e*f;		out(a);
	putchar(13);
	a=b/c;		out(a);
	a=b%c;		out(a);
	a=b++;		out(a);
	a= ++b;		out(a);
	a= b--;		out(a);
	putchar(13);
	a= --b;		out(a);
	a= *d;		out(a);
	a= &b;		out(a);
	e=a;		out(ifix(e));
	a=d[1];		out(a);
	putchar(13);

			/* get file names from command line */
	if(getarg(1,file,16)==-1)exit();
	infile=fopen(file,"r");
	if(getarg(2,file,16)==-1)exit();
	outfile=fopen(file,"w");
				/* copy first file to second */
	while((c=getc(infile))!=-1)putc(c,outfile);
	fclose(outfile);
}
 
out(a) int a;
{	printf("\t%d: %d",line++,a);
}
alpha()
{	1;
	puts("\nentering alpha");
	beta();
	gamma();
	gamma();
	puts("\nalpha signing off");
}
beta()
{	2;
	puts("\nentering beta");
	gamma();
	puts("\nbeta signing off");
}
gamma()
{	3;
	puts("\nentering gamma");
	err("just testing");
	puts("\ngamma signing off");
}
putnum(x) int x;
{	if(x<0){x=-x;
	putchar('-');}
	if(x>9)putnum(x/10);
	putchar('0'+x%10);
}
outf(x) double x;
{	printf(" %16.13f \n",x);
}                                                                                