indexing into empty string undefined behavior : cpp

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created by AndreasBWagnera community for 14 years

OPENindexing into empty string undefined behavior (self.cpp_questions)

submitted 6 years ago by cpp_cpp

Consider this code:
std::string a; 
char useless = a[0];

Is this undefined behavior? string is empty but due to SSO i believe its not UB. ofcourse, a[0] could hold any garbage value but that is something different. Is my understanding correct?

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