Provided by: libpcp3-dev_4.0.1-1_amd64 bug

NAME
       pmDerivedErrStr - return error message from failure to parse derived metric definition


C SYNOPSIS
       #include <pcp/pmapi.h>

       char *pmDerivedErrStr(void);

       cc ... -lpcp


DESCRIPTION
       When  pmRegisterDerived(3)  is  called to add a new derived metric definition and an error
       occurs, pmDerivedErrStr may be called to return the associated error message.

       The  pmRegisterDerivedMetric  interface  provides  a  convenience  wrapper   around   both
       pmRegisterDerived and pmDerivedErrStr.


SEE ALSO
       PCPIntro(1), PMAPI(3) and pmRegisterDerived(3).