[llvm-bugs] [Bug 50456] New: Blackslashes pre-processing implementation is non-standard

via llvm-bugs llvm-bugs at lists.llvm.org
Mon May 24 09:19:50 PDT 2021


https://bugs.llvm.org/show_bug.cgi?id=50456

            Bug ID: 50456
           Summary: Blackslashes pre-processing implementation is
                    non-standard
           Product: clang
           Version: trunk
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: info at jannes-althoff.de
                CC: llvm-bugs at lists.llvm.org, neeilans at live.com,
                    richard-llvm at metafoo.co.uk

The Backlashes are not correctly parsed if you try to compile this
/**\
\
/
int main(void){return 0;}
this should compile because backslashes before newlines should be evaluated
before Comments according to section 5.1.1.2 of C11 and C99, but clang gives
"<source>:1:1: error: unterminated /* comment" as an error.

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