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"The width of wchar_t is compiler-specific and can be as small as 8 bits. Consequently, programs that need to be portable across any C or C++ compiler should not use wchar_t for storing Unicode text. The wchar_t type is intended for storing compiler-defined wide characters, which may be Unicode characters in some compilers." [6]
On other platforms it is defined as 32-bit and a Unicode code point always fits. The C standard only requires that wchar_t be wide enough to hold the widest character set among the supported system locales [9] and be greater or equal in size to char, [10] wint_t: Integer type that can hold any value of a wchar_t as well as the value of the ...
modified_identifier_list «As «non_array_type««array_rank_specifier»» (multiple declarator); valid declaration statements are of the form Dim declarator_list , where, for the purpose of semantic analysis, to convert the declarator_list to a list of only single declarators:
CHAR – Single-byte character (1 byte, limited to characters 0 to 255 of ISO/IEC 10646) WCHAR – Double-byte character (2 byte, limited to characters 0 to 65535 of ISO/IEC 10646) STRING – Variable-length single-byte character string. Literals specified with single quote, 'This is a STRING Literal' WSTRING – Variable-length double-byte ...
[10] [11] However it still contains errors such as defining an array of char as a character array (rather than a byte array). [12] Unicode can also be stored in strings made up of code units that are larger than char. These are called "wide characters". The original C type was called wchar_t.
[1] [a] Most common variable-width encodings are multibyte encodings (aka MBCS – multi-byte character set), which use varying numbers of bytes to encode different characters. (Some authors, notably in Microsoft documentation, use the term multibyte character set, which is a misnomer , because representation size is an attribute of the ...
The C standard library, sometimes referred to as libc, [1] is the standard library for the C programming language, as specified in the ISO C standard. [2] Starting from the original ANSI C standard, it was developed at the same time as the C POSIX library, which is a superset of it. [3]
The second kind, defined as L"", produces a null-terminated array of type const wchar_t, where wchar_t is a wide-character of undefined size and semantics. Neither literal type offers support for string literals with UTF-8, UTF-16, or any other kind of Unicode encodings. C++11 supports three Unicode encodings: UTF-8, UTF-16, and UTF-32.