代码

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

评测结果