http://llvm.org/bugs/show_bug.cgi?id=10698
Summary: #define followed by a comment while clang is started
with -C
Product: clang
Version: trunk
Platform: PC
OS/Version: Windows NT
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
If starting Clang preprocessor with -E -C command line options on the code:
#if defined A // some comment
...
#endif
generates the following error message:
definecomment.cpp:1:16: error: token is not a valid binary operator in a
preprocessor subexpression
#if defined A // some comment
~~~~~~~~~ ^
<scratch space>:2:1: note: expanded from:
/* some comment*/
^
#line 1 "definecomment.cpp"
#line 1 "definecomment.cpp"
#line 1 "<built-in>"
#line 1 "<built-in>"
#line 144 "<built-in>"
#line 1 "<command line>"
#line 1 "<built-in>"
#line 1 "definecomment.cpp"
1 error generated.
This code creates no issues with MSVC compiler. Starting Clang with only -E
switch works fine as well.
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