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When libstdc++ is built without RTTI the __ios_failure type is just an alias for std::ios_failure, so trying to construct it from an int won't compile. This changes the RTTI-enabled __ios_failure type to have the same constructor parameters as std::ios_failure, so that the constructor takes the same arguments whether RTTI is enabled or not. The __throw_ios_failure function now constructs the error_code, instead of the __ios_failure constructor. As a drive-by fix that error_code is constructed with std::generic_category() not std::system_category(), because the int comes from errno which corresponds to the generic category. libstdc++-v3/ChangeLog: PR libstdc++/99077 * src/c++11/cxx11-ios_failure.cc (__ios_failure(const char*, int)): Change int parameter to error_code, to match std::ios_failure. (__throw_ios_failure(const char*, int)): Construct error_code from int parameter.
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