| Summary: | g++ 9.2.1 crashes compiling clickhouse | ||
|---|---|---|---|
| Product: | gcc | Reporter: | Rafael David Tinoco <rafaeldtinoco> |
| Component: | c++ | Assignee: | Not yet assigned to anyone <unassigned> |
| Status: | RESOLVED DUPLICATE | ||
| Severity: | normal | CC: | webrown.cpp |
| Priority: | P3 | ||
| Version: | 9.2.1 | ||
| Target Milestone: | --- | ||
| See Also: | https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91500 | ||
| Host: | Target: | ||
| Build: | Known to work: | ||
| Known to fail: | Last reconfirmed: | 2019-08-20 00:00:00 | |
Please provide a testcase that can be compiled. Related: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91500 Possibly a duplicate. |
The following function: std::string toString(const ColumnDefaultKind kind) { static const std::unordered_map<ColumnDefaultKind, std::string> map{ { ColumnDefaultKind::Default, AliasNames::DEFAULT }, { ColumnDefaultKind::Materialized, AliasNames::MATERIALIZED }, { ColumnDefaultKind::Alias, AliasNames::ALIAS } }; const auto it = map.find(kind); return it != std::end(map) ? it->second : throw Exception{"Invalid ColumnDefaultKind", ErrorCodes::LOGICAL_ERROR}; } causes gcc9 (with attached dump) to crash while other similar function (in related syntax): ColumnDefaultKind columnDefaultKindFromString(const std::string & str) { static const std::unordered_map<std::string, ColumnDefaultKind> map{ { AliasNames::DEFAULT, ColumnDefaultKind::Default }, { AliasNames::MATERIALIZED, ColumnDefaultKind::Materialized }, { AliasNames::ALIAS, ColumnDefaultKind::Alias } }; const auto it = map.find(str); return it != std::end(map) ? it->second : throw Exception{"Unknown column default specifier: " + str, ErrorCodes::LOGICAL_ERROR}; } does not. Changing the syntax to: std::string toString(const ColumnDefaultKind kind) { static const std::unordered_map<ColumnDefaultKind, std::string> map{ { ColumnDefaultKind::Default, AliasNames::DEFAULT }, { ColumnDefaultKind::Materialized, AliasNames::MATERIALIZED }, { ColumnDefaultKind::Alias, AliasNames::ALIAS } }; const auto it = map.find(kind); if (it != std::end(map)) throw Exception{"Invalid ColumnDefaultKind", ErrorCodes::LOGICAL_ERROR}; return it->second; } fixes the issue.