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std::mbstate_t(3)	      C++ Standard Libary	     std::mbstate_t(3)

NAME
       std::mbstate_t -	std::mbstate_t

Synopsis
	  Defined in header <cuchar>  (since C++17)
	  Defined in header <cwchar>
	  struct mbstate_t;

	  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  mb-
       state_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 ar-
       ray 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.

See also
	  mbsinit  checks  if  the  mbstate_t  object represents initial shift
       state
		  (function)

http://cppreference.com		  2022.07.31		     std::mbstate_t(3)

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