Return a valid pointer from validator_error::what(). #1016
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stringstream::str() creates a temporary that is destroyed at the end of the full-expression (the semi-colon), and c_str() on that string returns a pointer internal to the string. This function returns a pointer to freed memory.
Spotted by clang warning:
```
error.h:51:12: warning: returning address of local temporary object [-Wreturn-stack-address]
return ss.str().c_str();
^~~~~~~~
1 warning generated.
```
|
I think the CodeQL check failure isn't due to this PR: |
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stringstream::str() creates a temporary that is destroyed at the end of the full-expression (the semi-colon), and c_str() on that string returns a pointer internal to the string. This function returns a pointer to freed memory.
Spotted by clang warning: