pmemset_errormsg() - returns last error message
#include <libpmemset.h> const char *pmemset_errormsg(void);
If an error is detected during the call to a libpmemset(7) function, the application may retrieve an error message describing the reason of the failure from pmemset_errormsg(). The error message buffer is thread-local; errors encountered in one thread do not affect its value in other threads. The buffer is never cleared by any library function; its content is significant only when the return value of the immediately preceding call to a libpmemset(7) function indicated an error. The application must not modify or free the error message string. Subsequent calls to other library functions may modify the previous message.
The pmemset_errormsg() function returns a pointer to a static buffer containing the last error message logged for the current thread. If errno was set, the error message may include a description of the corresponding error code as returned by strerror(3).
strerror(3), libpmemset(7) and https://pmem.io
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