/* 
 * Program to copy text from stdin to stdout (i.e., echo).
 * 
 * writes prompt and count of chars to stderr not stdout so we can use this
 * as a file-copy program, using I/O redirection
 */
#include <stdio.h>

void echo(void);

int main(void) {
	fprintf(stderr, "enter some text\n");

	int inchar;
	int count = 0;
	while ((inchar = fgetc(stdin)) != EOF) {
		count += 1;
		fputc(inchar, stdout);
	}
	/* another way 
	inchar = getchar();
	while (inchar != EOF) {
		count += 1;
		putchar(inchar);
		inchar = getchar();
	}
	*/
	fprintf(stderr, "%d chars echoed\n", count);

	return 0;
}