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Standard error outputs in C++ go to either
cerr
or clog
streams.Solución
-
In C++ the standard error output can be directed to either of two stream objects:
-
, which is unbuffered and immediately outputs error messages. -
, which is buffered and may delay the output.
-
-
Therefore, the standard error stream outputs are directed to the stream objects
or .
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Como
error msg


Beyond the Answer
Did you know that in C++,
cerr
and clog
are both used for outputting error messages, but they serve distinct purposes? cerr
is used for immediate error reporting and is unbuffered, meaning it outputs as soon as it’s called, making it perfect for critical error notifications. On the other hand, clog
is buffered, which means it collects output until a flush is needed. This can be useful when you want to log messages without interrupting the execution flow immediately!In practical terms, when debugging your C++ applications, you’ll often find it helpful to utilize these streams effectively. For instance, using
cerr
during the development phase can alert you instantly to issues as they happen, while clog
can be leveraged for logging data over time, allowing you to gather insights from your program’s runtime performance without cluttering your immediate output with less urgent information.
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