Difference between revisions of "cpp/string/multibyte/mbstate t"
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Possible implementation of {{tt|mbstate_t}} is a struct type holding an array representing the incomplete multibyte character, an integer counter indicating the number of bytes in the array that have been processed, and a representation of the current shift state. | Possible implementation of {{tt|mbstate_t}} is a struct type holding an array representing the incomplete multibyte character, an integer counter indicating the number of bytes in the array that have been processed, and a representation of the current shift state. | ||
| − | The following functions should not be called from multiple threads without synchronization with the {{c|std::mbstate_t*}} argument of | + | The following functions should not be called from multiple threads without synchronization with the {{c|std::mbstate_t*}} argument of a null pointer due to possible data races: {{lc|std::mbrlen}}, {{lc|std::mbrtowc}}, {{lc|std::mbsrtowcs}}, {{lc|std::mbtowc}}, {{lc|std::wcrtomb}}, {{lc|std::wcsrtombs}}, {{lc|std::wctomb}}. |
===See also=== | ===See also=== | ||
Latest revision as of 03:27, 16 June 2020
| Defined in header <cuchar>
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(since C++17) |
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| Defined in header <cwchar>
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| struct mbstate_t; |
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The type mbstate_t is a trivial non-array type that can represent any of the conversion states that can occur in an implementation-defined set of supported multibyte character encoding rules. Zero-initialized value of mbstate_t represents the initial conversion state, although other values of mbstate_t may exist that also represent the initial conversion state.
Possible implementation of mbstate_t is a struct type holding an array representing the incomplete multibyte character, an integer counter indicating the number of bytes in the array that have been processed, and a representation of the current shift state.
The following functions should not be called from multiple threads without synchronization with the std::mbstate_t* argument of a null pointer due to possible data races: std::mbrlen, std::mbrtowc, std::mbsrtowcs, std::mbtowc, std::wcrtomb, std::wcsrtombs, std::wctomb.
[edit] See also
| checks if the std::mbstate_t object represents initial shift state (function) | |
| C documentation for mbstate_t
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