代码

void my_memset(char *a, char c, unsigned n) {
	unsigned i=0;
	for(;i+8<n;i+=8)
		a[i]=a[i+1]=a[i+2]=a[i+3]=a[i+4]=a[i+5]=a[i+6]=a[i+7]=c;
	while(i<n) a[i++]=c;
}

评测结果