diff options
Diffstat (limited to 'clang/lib/AST/ExprConstant.cpp')
| -rw-r--r-- | clang/lib/AST/ExprConstant.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp index 1ad0bc5474b..fc3c5aac01c 100644 --- a/clang/lib/AST/ExprConstant.cpp +++ b/clang/lib/AST/ExprConstant.cpp @@ -3891,8 +3891,15 @@ bool IntExprEvaluator::VisitCallExpr(const CallExpr *E) { case Builtin::BI__builtin_expect: return Visit(E->getArg(0)); - + case Builtin::BIstrlen: + // A call to strlen is not a constant expression. + if (Info.getLangOpts().CPlusPlus0x) + Info.CCEDiag(E->getExprLoc(), diag::note_constexpr_invalid_function) + << /*isConstexpr*/0 << /*isConstructor*/0 << "'strlen'"; + else + Info.CCEDiag(E->getExprLoc(), diag::note_invalid_subexpr_in_const_expr); + // Fall through. case Builtin::BI__builtin_strlen: // As an extension, we support strlen() and __builtin_strlen() as constant // expressions when the argument is a string literal. |
