https://llvm.org/bugs/show_bug.cgi?id=24293
Bug ID: 24293
Summary: Clang incorrectly thinks that enumerators of enum does
not fit in the largest integer type
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: anders.granlun...@gmail.com
CC: llvmbugs@cs.uiuc.edu
Classification: Unclassified
Consider the following well-formed program (prog.cc):
#include <limits>
enum E { x = std::numeric_limits<long long int>::max(), y };
int main() {}
Compile it with the following command line:
clang++ prog.cc -stdlib=libc++ -std=c++14 -pedantic-errors
The enumerators x and y fits in unsigned long long int, but clang incorrectly
gives the following error message:
prog.cc:2:57: error: incremented enumerator value 9223372036854775808 is not
representable in the largest integer type [-Werror,-Wenum-too-large]
enum E { x = std::numeric_limits<long long int>::max(), y };
^
1 error generated.
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