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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]
wchar_t: Type used for a code unit in "wide" strings. On Windows, the only platform to use wchar_t extensively, it's defined as 16-bit [8] which was enough to represent any Unicode character, but is now only enough to represent a UTF-16 code unit, which can be half a code point. On other platforms it is defined as 32-bit and a Unicode code ...
There is a similar class std::wstring, which consists of wchar t, and is most often used to store UTF-16 text on Windows and UTF-32 on most Unix-like platforms. The C++ standard, however, does not impose any interpretation as Unicode code points or code units on these types and does not even guarantee that a wchar_t holds more bits than a char ...
The C programming language provides many standard library functions for file input and output.These functions make up the bulk of the C standard library header <stdio.h>. [1] The functionality descends from a "portable I/O package" written by Mike Lesk at Bell Labs in the early 1970s, [2] and officially became part of the Unix operating system in Version 7.
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 character string. Literals specified with a double quote, "This is a WSTRING Literal"
The original C type was called wchar_t. Due to some platforms defining wchar_t as 16 bits and others defining it as 32 bits, recent versions have added char16_t, char32_t. Even then the objects being stored might not be characters, for instance the variable-length UTF-16 is often stored in arrays of char16_t. Other languages also have a char type.
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]
A variable-width encoding is a type of character encoding scheme in which codes of differing lengths are used to encode a character set (a repertoire of symbols) for representation, usually in a computer.