原型：extern int bcmp(const void *s1, const void *s2, int n);

用法：#include <string.h>

功能：比较字符串s1和s2的前n个字节是否相等

说明：如果s1=s2或n=0则返回零，否则返回非零值。bcmp不检查NULL。

举例：

// bcmp.c

#include <syslib.h>

#include <string.h>

main()

{

char *s1="Golden Global View";

char *s2="Golden global view";;

clrscr(); // clear screen

if(!bcmp(s1,s2,7))

printf("s1 equal to s2 in first 7 bytes");

else

printf("s1 not equal to s2 in first 7 bytes");

getchar();

clrscr();

if(!bcmp(s1,s2,12))

printf("s1 equal to s2 in first 12 bytes");

else

printf("s1 not equal to s2 in first 12 bytes");

getchar();

return 0;

}