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libcamera: base: log: Replace stderr with std::cerr in documentation

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While std::cerr and stderr both target the same file by default, this
may be overridden by applications. Update the documentation to use
std::cerr instead of stderr to be accurate.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
This commit is contained in:
Laurent Pinchart
2022-05-25 18:48:26 +03:00
parent 95c1ff8eb6
commit 8a606e6c67
1 changed files with 6 additions and 5 deletions
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11
src/libcamera/base/log.cpp
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@@ -46,11 +46,11 @@
* their category are output to the log, while other messages are silently
* discarded.
*
* By default log messages are output to stderr. They can be redirected to a log
* file by setting the LIBCAMERA_LOG_FILE environment variable to the name of
* the file. The file must be writable and is truncated if it exists. If any
* By default log messages are output to std::cerr. They can be redirected to a
* log file by setting the LIBCAMERA_LOG_FILE environment variable to the name
* of the file. The file must be writable and is truncated if it exists. If any
* error occurs when opening the file, the file is ignored and the log is output
* to stderr.
* to std::cerr.
*/
/**
@@ -527,7 +527,8 @@ Logger::Logger()
* If the LIBCAMERA_LOG_FILE environment variable is set, open the file it
* points to and redirect the logger output to it. If the environment variable
* is set to "syslog", then the logger output will be directed to syslog. Errors
* are silently ignored and don't affect the logger output (set to stderr).
* are silently ignored and don't affect the logger output (set to std::cerr by
* default).
*/
void Logger::parseLogFile()
{