Oct 18, 2008 · For low-level languages like C or C++, I prefer to use mutable objects to conserve space and reduce memory churn. In higher-level languages, immutable objects make it easier …

May 31, 2013 · In fact, by assigning b and c to 0 and then later reassigning them to 1 and 2 respectively, you demonstrated that ints (and all data types in C that are not declared const …

Feb 13, 2022 · The keyword mutable is mainly used to allow a particular data member of const object to be modified. When we declare a function as const, the this pointer passed to function …

May 27, 2010 · You can create an immutable string class in C++, and you can make it largely compatible with std::string—but you will still lose when comparing to a built-in string class with …

Nov 19, 2021 · You have &str, an immutable reference to a dynamically sized string, and String, a heap-allocated string buffer. It's possible to dereference a String to get access to the &str it …

The main takeaway is that you should only use mutable when your changing the string itself. But you can change the variable with both mutable and immutable strings without compiler or …

Other objects are mutable : they have methods that change the value of the object. String is an example of an immutable type. A String object always represents the same string. …

Jan 26, 2025 · Now, when it comes to mutability, C strings have an interesting property – they are immutable. This means that once a string is created, its individual characters cannot be …

Jul 7, 2017 · In both C and C++, string constants (declared with the const qualifier) are immutable, but you can easily “cast away” the const qualifier, so the immutability is weakly enforced. In …

'mutable' does not affect bitwise/logical constness at all. C++ is only bitwise const and the 'mutable' keyword can be used to exclude members from this checking. It is not possible to …