[LLVMbugs] [Bug 2767] New: -C output inconsistent with -E for trigraphs

[bugzilla-daemon at cs.uiuc.edu]

http://llvm.org/bugs/show_bug.cgi?id=2767

           Summary: -C output inconsistent with -E for trigraphs
           Product: clang
           Version: unspecified
          Platform: PC
        OS/Version: NetBSD
            Status: NEW
          Severity: minor
          Priority: P2
         Component: preprocessor
        AssignedTo: unassignedbugs at nondot.org
        ReportedBy: neil at daikokuya.co.uk
                CC: llvmbugs at cs.uiuc.edu


For the following two-line file:

??< ??>
/* ??< ??> */

Clang gives:

$ clang /tmp/test.c -E -C -trigraphs 2>/dev/null
# 1 "/tmp/test.c" 1
# 0 "/tmp/test.c"
# 1 "<predefines>" 1
# 1 "/tmp/test.c" 2
{ }
/* ??< ??> */

GCC gives:

$ cpp /tmp/test.c -E -C -trigraphs 2>/dev/null
# 1 "/tmp/test.c"
# 1 "<built-in>"
# 1 "<command line>"
# 1 "/tmp/test.c"
{ }
/* { } */


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