Function vsnprintf

Source/3rdParty/bx/src/string.cpp:1231–1262

	}

	int32_t vsnprintf(char* _out, int32_t _max, const char* _format, va_list _argList)
	{
		if (   0 <  _max
		&&  NULL != _out)
		{
			StaticMemoryBlockWriter writer(_out, uint32_t(_max) );

			Error err;
			va_list argListCopy;
			va_copy(argListCopy, _argList);
			int32_t size = write(&writer, _format, argListCopy, &err);
			va_end(argListCopy);

			size += write(&writer, '\0', &err);

			if (err.isOk() )
			{
				return size - 1 /* size without '\0' terminator */;
			}

			_out[_max-1] = '\0';
		}

		Error err;
		SizerWriter sizer;
		va_list argListCopy;
		va_copy(argListCopy, _argList);
		int32_t total = write(&sizer, _format, argListCopy, &err);
		va_end(argListCopy);

		return total;
	}

	int32_t snprintf(char* _out, int32_t _max, const char* _format, ...)
	{