Aleksandr Platonov
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dcb8d3b722
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[clang-tidy] Fix a crash in bugprone-not-null-terminated-result check when `__STDC_WANT_LIB_EXT1__` is not a literal.
If `__STDC_WANT_LIB_EXT1__` is not a literal (e.g. `#define __STDC_WANT_LIB_EXT1__ ((unsigned)1)`) bugprone-not-null-terminated-result check crashes.
Stack dump:
```
#0 0x0000000002185e6a llvm::sys::PrintStackTrace(llvm::raw_ostream&) (/llvm-project/build/bin/clang-tidy+0x2185e6a)
#1 0x0000000002183e8c llvm::sys::RunSignalHandlers() (/llvm-project/build/bin/clang-tidy+0x2183e8c)
#2 0x0000000002183ff3 SignalHandler(int) (/llvm-project/build/bin/clang-tidy+0x2183ff3)
#3 0x00007f08d91b1390 __restore_rt (/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#4 0x00000000021338bb llvm::StringRef::getAsInteger(unsigned int, llvm::APInt&) const (/llvm-project/build/bin/clang-tidy+0x21338bb)
#5 0x000000000052051c clang::tidy::bugprone::NotNullTerminatedResultCheck::check(clang::ast_matchers::MatchFinder::MatchResult const&) (/llvm-project/build/bin/clang-tidy+0x52051c)
```
Reviewed By: hokein
Differential Revision: https://reviews.llvm.org/D85525
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2020-08-10 15:12:03 +03:00 |