View source for cpp/language/cv

===Conversions===
There is partial ordering of cv-qualifiers by the order of increasing restrictions. The type can be said ''more'' or ''less'' cv-qualified than:
* ''unqualified'' < {{c/core|const}}
* ''unqualified'' < {{c/core|volatile}}
* ''unqualified'' < {{c/core|const volatile}}
* {{c/core|const}} < {{c/core|const volatile}}
* {{c/core|volatile}} < {{c/core|const volatile}}

References and pointers to cv-qualified types can be implicitly converted to references and pointers to more cv-qualified types, see {{rlp|implicit cast#Qualification conversions|qualification conversions}} for details.

To convert a reference or a pointer to a cv-qualified type to a reference or pointer to a less cv-qualified type, {{rlpt|const_cast}} must be used.