http://llvm.org/bugs/show_bug.cgi?id=16880
Bug ID: 16880
Summary: Clang crashes when taking sizeof() of undeduced auto
variable of ranged for loop
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Frontend
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Repro:
void test() {
for (auto &A : X){
int x = sizeof(A);
}
}
Commandline:
clang -std=c++11 testing.cc
Output:
testing.cc:2:18: error: use of undeclared identifier 'X'
for (auto &A : X){
^
clang-3.3: llvm/tools/clang/lib/AST/ASTContext.cpp:1645: std::pair<long
unsigned int, unsigned int> clang::ASTContext::getTypeInfoImpl(const
clang::Type*) const: Assertion `!A->getDeducedType().isNull() && "cannot
request the size of an undeduced or dependent auto type"' failed.
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