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| Regular expressions library(C++11) | |||||||||||||||||||||||||
| Formatting library(C++20) | |||||||||||||||||||||||||
| Null-terminated sequence utilities | |||||||||||||||||||||||||
| Byte strings | |||||||||||||||||||||||||
| Multibyte strings | |||||||||||||||||||||||||
| Wide strings | |||||||||||||||||||||||||
| Primitive numeric conversions | |||||||||||||||||||||||||
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| Text encoding identifications | |||||||||||||||||||||||||
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Defined in header <locale> | ||
class messages_base; | ||
The classstd::messages_base provides a type definition which is inherited and used by thestd::messages facets.
| Member type | Definition |
catalog | An unspecified signed integer type |
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
| DR | Applied to | Behavior as published | Correct behavior |
|---|---|---|---|
| LWG 2028 | C++98 | catalog was defined asint | defined as an unspecified signed integer type[1] |
nl_catd used inPOSIX messaging API is a typedef of an unspecified type.| implements retrieval of strings from message catalogs (class template)[edit] |
