Examples of using Const in English and their translations into Chinese
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Ecclesiastic
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Programming
Const: Thanks for appreciating my work.
Almost always, if you can choose between the two, choose const.
Const: It is used to create an immutable variable.
If a global variable will not change,adding a const declaration solves this performance problem.
Both const and static have requirements for giving them a value.
If n is the number of data points and const= TRUE or omitted, then v1= n- df- 1 and v2= df.
If const is TRUE or omitted, b is calculated normally.
As a declaration,but you can't do that except as a compiler extension" with static const int var= 5;
Constants are declared like variables, but with the const keyword.
If you need to assign and initialize a char* with a string literal constant,you should use const char* or auto.
Const. amend V. This protection is guaranteed by the Nevada Constitution.
This is similar to the output operator,except the parameter doesn't have a const:“Fred&” rather than“const Fred&”.
Size_type size() const Returns the number of elements contained in the queue.
But before we actually dive into the differences between var, let, and const, there are some prerequisites you need to know first.
If const is FALSE, b is set equal to 0(zero), and the m-values are adjusted so that y= mx.
That would be a bad thing, since we would have lost the const qualifier: p is a Foo* but x is a const Foo.
Once a const is initialized, its value can never be changed again, and it can't be reassigned to a different value.
Modern JavaScript developers might choose to always use const for variables that don't need to be reassigned later in the program.
The benefit of const correctness is that it prevents you from inadvertently modifying something you didn't expect would be modified.
NET code- according to Microsoft, fields(other than const fields) should always be private and wrapped by public properties.
Const_cast, for casting away the const-ness of a variable, or converting a non-const variable to be const.
In fact it is a very strong convention in Googlecode that input arguments are values or const references while output arguments are pointers.
For example, if class X has a const member function such as inspect() const, it is okay to say x. inspect().
For every type other than reference and function, the type system supports three additional cv-qualified versions of that type(const, volatile, and const volatile).
X const& x is equivalent to const X& x, and X const* x is equivalent to const X* x.
You can define a constant by using the define()-function or by using the const keyword outside a class definition as of PHP 5.3.0.
If const= TRUE or is omitted, the LINEST function effectively inserts an additional X column of all 1 values to model the intercept.
In C++98, only static const members of integral types can be initialized in-class, and the initializer has to be a constant expression.
The parameter const string& that binds to all expressions of type string which allows you to make copies in the following examples.