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c++wchar-t

Initialization of a wchar_t array with wmemset. Does encoding matter?

How do I correctly initialize a wchar_t array with wmemset? Should I use '\0' or L'\0' ? Does it matter? does the encoding matter ? (unicode, ISO####)

eg

wchar_t arr[20];
wmemset(arr, '\0', sizeof(arr));
Solution

  • You need to use the L'' form to get a wchar_t type, although any value that fits within a char (such as '\0') will be automatically converted using the usual integer promotions. See character literal or C++ Character Literals.

    It's unclear to me what code page the source will be interpreted in. To be safe, it's best to use a L'\u20ac' or L'\U000020ac' form to specify characters outside of the ASCII character set.