bcmp(), bcopy(), and bzero() execute binary string operations. They operate on variable length strings of bytes but do not check for null bytes as the routines in string do.

• bcmp() compares the first length bytes of strings b1 and b2, returning 0 if they are identical, non-zero otherwise. Both strings are assumed to be at least length bytes long.
• bcopy() copies the first length bytes from string b1 to string b2. bcopy() always returns 0 (zero).
• bzero() places 0s in the first length bytes of string b.

Note:   bcopy() takes its two char* parameters in the reverse order from strcpy() and memcpy().

int bcmp(
    char* b1,
    char* b2,
    int length
);

int bcopy(
    char* b1,
    char* b2,
    unsigned int length
);

void bzero(
    char* b,
    int length
);

Requirements