# std::messages_base

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< cpp‎ | locale

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

The class std::messages_base provides a type definition which is inherited and used by the std::messages facets.

### Member types

Member type | Definition
`catalog` | /*unspecified signed integer type*/

### Notes

`catalog` was erroneously specified as `int` in C++11, this was corrected in LWG issue #2028 and included in C++14

### See also

messages | implements retrieval of strings from message catalogs (class template)

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