WebDec 9, 2008 · 不好意思,弄错了。. 要把“int 转换为 const int ”,根本不需要加const_cast,直接写就行了。. int i; const int &ci = i; const_cast是用来清除const和volatile限定符的。. 要把i从int变为const int也是不可行的,因为变量声明后属性就固定了,只能用另一个变量来装载它。. Comeon ... WebMay 1, 2024 · const T and T const are identical. With pointer types it becomes more complicated: const char* is a pointer to a constant char char const* is a pointer to a constant char char* const is a constant pointer to a (mutable) char; In other words, (1) …
int const& 和 const int&有什么区别?-CSDN社区
Web终于到 const 出场了,在C++ 中 const 包含了两种含义:常量 和 只读,通过上面的讨论我们明白了 constexpr 也可以表示常量,两者在常量定义上的功能存在交集,在声明常量变量的情况下,两者作用相同。但是为了程序的规范易读,我们不妨做一些限制规范: fredbears family diner game download
const修饰的变量
http://duoduokou.com/csharp/33794507210996973607.html WebMay 5, 2024 · The difference between int and const int is that int is read/write while const int is read-only. If you want the compiler to catch invalid attempts to write to a variable, make it const. If the variable needs to be written to, as one that is legitimately used on the left of an equal sign, then it must not be const. WebJul 13, 2010 · Yes, they are the same. The rule in C++ is essentially that const applies to the type to its left. However, there's an exception that if you put it on the extreme left of … blepharitis moorfields patient leaflet