#include <stdio.h> #include <string.h> char str1[] = "The first string."; char str2[] = "The second string."; int main(){ size_t n, x; puts(str1); puts(str2); for(;;){ puts("\n\nEnter number of characters t compare, 0 to exit."); scanf("%d", &n); if(n <= 0) break; x = strncmp(str1, str2, n); printf("\nComparing %d characters, strncmp() return %d.", n, x); } return 0; }