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by uecker 52 days ago
That depends. But some sanitizer are cheap enough that you can usually always run them.

Regarding infinite loops, C++ and C differ with C++ being more aggressive. But also compilers differ with clang being more aggressive. https://godbolt.org/z/Moe6zYKqo

In general, I do not recommend to use clang if you worry about UB. gcc is a bit more reasonable and also has better warnings.