# std::codecvt_base

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< cpp‎ | locale

Defined in header `<locale>` |  |
class codecvt_base; |  |

The class std::codecvt_base provides the conversion status constants which are inherited and used by the std::codecvt facets.

### Member types

Member type | Definition
enum result { ok, partial, error, noconv }; | Unscoped enumeration type

Value | Explanation
`ok` | conversion was completed with no error
`partial` | not all source characters were converted
`error` | encountered an invalid character
`noconv` | no conversion required, input and output types are the same

### Notes

The value std::codecvt_base::partial is used to indicate that either the destination range is too short to receive the results of the conversion or the input is truncated in the middle of an otherwise valid multibyte character.

### See also

codecvt | converts between character encodings, including UTF-8, UTF-16, UTF-32 (class template)

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