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I have seen the following warning recently through my VS2010.
Warning 21 warning C4819: The file contains a character that cannot be represented in the current code page (936). Save the file in Unicode format to prevent data loss
c:\boost\vs2010_boost1.49\include\boost\format\alt_sstream_impl.hpp 1 Based on MSDN, the file contains a character that has to be saved in unicode format.
Question: I didn't touch those files myself. Is there a way that I can find those characters and correct it manually. In other words, I don't want to save the source file in unicode format.
Thank you
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Unicode is a universal character set, ie. a standard that defines, in one place, all the characters needed for writing the majority of living languages in use on computers. It aims to be, and to a large extent already is, a superset of all other character sets that have been encoded.
Data types nchar, nvarchar, and long nvarchar are used to store Unicode data. They behave similarly to char, varchar, and long varchar character types respectively, except that each character in a Unicode type typically uses 16 bits.
Unicode is a character set. It is a superset of all the other character sets. In the version 6.0, Unicode has 1,114,112 code points (the last code point is U+10FFFF).
The maximum possible number of code points Unicode can support is 1,114,112 through seventeen 16-bit planes. Each plane can support 65,536 different code points. Among the more than one million code points that Unicode can support, version 4.0 curently defines 96,382 characters at plane 0, 1, 2, and 14.
You can use Notepad++ to find all Unicode characters in a file using a regular expression:
[^\x00-\x7F] in the Find what box and hit the Find Next button to see what you get.After you find the Unicode character(s), you can remove/change them, change the encoding back to ANSI, and save the file.
You don't have to use Notepad++, of course. The RegEx will work in other text editors, e.g., Sublime Text.
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I met this problem in my project and tried to modify all non-unicode characters. But I had to give up and found a another way, as there were too many files with such problem (even though all of them are in comments).
Then I found a quick way to fix this by setting 'system locale'.
Control Panel -> Clock,Language,and Region -> Region and Language -> Administrative -> Language for non-Unicode programs -> Change system locale -> English I think this could fix your problem if your 'system locale' is not English.
https://stackoverflow.com/a/37871883/3148107
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