http://llvm.org/bugs/show_bug.cgi?id=17804
Bug ID: 17804
Summary: crash on invalid in preprocessor lexer
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
clang: TokenLexer.cpp:194: void clang::TokenLexer::ExpandFunctionArguments():
Assertion `ArgNo != -1 && "Token following # is not an argument?"' failed.
Testcase:
#define LOG_ON_ERROR(lvl) ::X x## #__LINE__;
LOG_ON_ERROR(0);
clang -E is sufficient to trigger the crash.
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