id summary reporter owner description type status milestone component version severity resolution keywords cc 10091 compile alt_sstream_impl.hpp got warning C4819 under MSVC Jia-Jium Lee Samuel Krempp "I got a C4819 warning as below. This bug was in there even since boost 1.33.1 or earlier. This problem occurs in different version of VC++ and different Windows. 4>D:\Code\boost\include\boost-1_55\boost/format/alt_sstream_impl.hpp : warning C4819: The file contains a character that cannot be represented in the current code page (950). Save the file in Unicode It is cause by the comment ""operation guaranteed by 27.4.3.2 table 88 "". If you check it by a binary editor, there is a codepoint 0xA7 before ""27.4.3.2"". That codepoint will cause a problem in codepage 950 (Taiwan), 932 (Japan), 936 (China), 949 (Korea) under Windows. The http://stackoverflow.com/questions/10501634/warning-c4819-how-to-find-the-character-that-has-to-be-saved-in-unicode described the same problem. " Bugs closed Boost 1.63.0 format Boost 1.55.0 Problem duplicate