strings1.c

C源码集

#include <stdio.h>
#include <string.h>

int main ()
{
	char fastcar[15] = "Super Groover";
	char slowcar[6]  = {'R', 'u', 's', 't', 'y', '\0'};
	char winner[] = "Big Head";  // size = 8 + 1 chars
	char daily[20];
	int i;

	printf("What is the name of your everyday car? ");
	scanf("%s", daily);
	printf("%s, that's a nice name for a car\n\n", daily);

	/* scanf only reads to the first white space and other characters
	can be a problem. Try changing to gets() */

	printf("The slowcar's name backwards is ");
	for (i = 2; i <= sizeof(slowcar); i++)
		printf("%c", slowcar[sizeof(slowcar) - i]);

	// slowcar [0], [1], [2], [3], [4], contain letters, [5] is '/0'


	printf("\n\nWhat would you like to call the fast car? ");
	gets(fastcar);

	strcpy(slowcar, "Sam");
	// OK, no overflow problem

	printf("\n%s goes faster than %s\n\n", fastcar, slowcar);

	strncpy(winner, "Small Gear Shift", sizeof(winner));
	 // size 16 + 1 chars!! Won't all fit, need to add null character

	winner[sizeof(winner) - 1] = '\0';
	// comment out this line and see what happens with the printf!

	printf("And the winner is ...  %s!!! \n", winner);

	return 0;
}