C語言- memcmp() 用法

/* 比較兩個block的內容, Compare two blocks of memory */

int compare_result = 0;
/* 存放function return value, 0: same; else: different */

int length = strlen(str1);
 /* for memcmp(), 要比較長度為多少 */

char str1[] = "abccc";
char str2[] = "abcdc";

compare_result = memcmp(str1, str2, length);
/* 此時 compare_result != 0 */



延伸閱讀
http://www.cplusplus.com/reference/clibrary/cstring/memcmp/