String constructor now permits length of 0 with non-null - This was useful when using static buffers that don't have content. Ensure the syscall error message buffer is properly initialized.

arr committed 9 years ago

Commit 058335e1 parent 0643d043 files · +9 −4Browse files

Showing the changes to src/vm/string.cpp (1 of 3 files). Show all

Unified · Split

src/vm/string.cpp+4−1

@@ -190,7 +190,10 @@ vm_string_t::vm_string_t(std::size_t encoded_str_len, const uint8_t *encoded_str · 189 unmodified lines
190	190	, _length_max{ sizeof(_mem.local) }
191	191	, _mem{}
192	192	{
193		− assert((encoded_str_len > 0 && encoded_str != nullptr) \|\| (encoded_str_len == 0 && encoded_str == nullptr));
	193	+ assert((encoded_str_len > 0 && encoded_str != nullptr) \|\| encoded_str_len == 0);
	194	+ if (encoded_str_len == 0)
	195	+ encoded_str = nullptr;
	196	+
194	197	const auto utf8_length = utf8::count_codepoints(encoded_str, encoded_str_len);
195	198
196	199	// Check if the supplied string is completely valid UTF-8 - only valid UTF-8 strings can be DisVM strings.