Wide-character-string allocation
When you represent a wide-character string in an array, the number of array elements does equal the number of wide characters in the string. Therefore, you can use the same allocation method for wide-character strings as for single-byte strings.
For example, the following declaration statically allocates
20 wide characters for the wcs string:
gl_wchar_t wcs[20];The
following declaration dynamically allocates 20 wide characters for
the wc1 string:
gl_wchar_t *wcs1 = (gl_wchar_t *) malloc(20*sizeof(gl_wchar_t));If
your wide-character string is null terminated, you must allocate one
additional character for the null terminator. The null terminator
requires the same space allocated as an entire wide-character. The
following declaration allocates three null-terminated wide-character
strings:
/* static allocation */
gl_wchar_t wcs[21];
/* dynamic allocation */
gl_wchar_t *wcs3 = (gl_wchar_t *) malloc(21*sizeof(gl_wchar_t));