The required length calculated storage space (creative reports) for a variety of string

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First, single-byte characters is calculated, the length of the storage space required for each character width is
the sizeof (char) =. 1;
the sizeof (wchar_t) = 2;

And examples of the required storage space for each character string length (byte units)
char A [] = "12345"; // single length. 6
char B [] = "1234 in"; // plurality length. 7
wchar_t C [ ] = L "12345"; // width 12 length

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