strncmp.c

里面包含很多c语言的源码

/* The strncmp() function. */

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

char str1[] = "The first string.";
char str2[] = "The second string.";

int main( void )
{
    size_t n, x;

    puts(str1);
    puts(str2);

    while (1)
    {
        puts("\n\nEnter number of characters to compare, 0 to exit.");
        scanf("%d", &n);

        if (n <= 0)
            break;

        x = strncmp(str1, str2, n);

        printf("\nComparing %d characters, strncmp() returns %d.", n, x);
    }
    return 0;
}