[LLVMbugs] [Bug 20453] New: minor display problem with text diagnostic source lines when source contains multi-byte characters

[bugzilla-daemon at llvm.org]

http://llvm.org/bugs/show_bug.cgi?id=20453

            Bug ID: 20453
           Summary: minor display problem with text diagnostic source
                    lines when source contains multi-byte characters
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Windows XP
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: seth.cantrell at gmail.com
                CC: llvmbugs at cs.uiuc.edu
    Classification: Unclassified

UTF-8 source file 'main.cpp':

int main() {
    int x = 'µ';
}

from cmd.exe run command 'chcp 65001'

run command 'clang++ main.cpp'

Output:

C:\path\main.cpp:2:10: error: character too large for enclosing character
literal type
        int x = 'µ';;
                ^
1 error generated.


There's an extra semicolon printed. Compiling with the console codepage set to
437 produces:

C:\path\main.cpp:2:10: error: character too large for enclosing character
literal type
        int x = '┬╡';
                ^

The output under chcp 65001 is what you would get writing out the string using
one column per byte and then overwriting it using the correct number of columns
for each character.

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