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#if defined(OS_WINDOWS)
wchar* un_wstring_from_string(String utf8_string, Allocator alloc) {
return un_wstring_from_cstring(un_string_to_cstring(utf8_string, un_allocator_get_temporary()), alloc);
}
wchar* un_wstring_from_cstring(u8 *utf8_string, Allocator alloc) {
u32 error_code, buffer_size, wrote_chars;
wchar *string_buffer;
assert(utf8_string != NULL);
buffer_size = MultiByteToWideChar(
CP_UTF8,
0, // or MB_PRECOMPOSED
(LPCCH)utf8_string,
-1,
NULL,
0
);
if (!buffer_size) {
error_code = GetLastError();
switch (error_code) {
case ERROR_NO_UNICODE_TRANSLATION: return NULL; break;
default:
assert(false);
break;
}
return NULL;
}
string_buffer = un_memory_alloc(sizeof(wchar) * buffer_size, alloc);
if (string_buffer == NULL) {
return NULL;
}
wrote_chars = MultiByteToWideChar(
CP_UTF8,
0, // or MB_PRECOMPOSED
(LPCCH)utf8_string,
-1,
(LPWSTR)string_buffer,
buffer_size
);
assert(wrote_chars == buffer_size);
return string_buffer;
}
#else
wchar* un_wstring_from_string(String utf8_string, Allocator alloc) {
UNUSED(utf8_string);
UNUSED(alloc);
__TRAP();
}
wchar* un_wstring_from_cstring(u8 *utf8_string, Allocator alloc) {
UNUSED(utf8_string);
UNUSED(alloc);
__TRAP();
}
#endif
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