/*
 * Program to get and echo a line of text, converting lowercase 
 * to uppercase.
 */
#include <stdio.h>
#include <string.h>
#include <ctype.h>

int main(void) {
	char line[80];
	printf("enter a line of text\n");
	fgets(line, sizeof line, stdin);
	char *nl = strchr(line, '\n');
	if (nl == NULL) {
		printf("line too long\n");
		return 1;
	}
	*nl = '\0';
	printf("line:\n%s\n", line);
	for (char * p = line; *p != '\0'; ++p) {
		*p = toupper(*p);
	}
	printf("in all caps:\n%s\n", line);
	return 0;
}