CentOS 7.0 - man page for papi_library_init (centos section 3)

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PAPI_library_init(3)			       PAPI			     PAPI_library_init(3)

       PAPI_library_init -

       initialize the PAPI library.

Detailed Description
       @param version
	   upon initialization, PAPI checks the argument against the internal
	   value of PAPI_VER_CURRENT when the library was compiled.
	   This guards against portability problems when updating the PAPI shared
	   libraries on your system.

       @retval PAPI_EINVAL
	   papi.h is different from the version used to compile the PAPI library.
       @retval PAPI_ENOMEM
	   Insufficient memory to complete the operation.
       @retval PAPI_ECMP
	   This component does not support the underlying hardware.
       @retval PAPI_ESYS
	   A system or C library call failed inside PAPI, see the errno variable.

       PAPI_library_init() initializes the PAPI library.
       PAPI_is_initialized() check for initialization.
       It must be called before any low level PAPI functions can be used.
       If your application is making use of threads PAPI_thread_init must also be
       called prior to making any calls to the library other than PAPI_library_init() .
       @par Examples:

       *       int retval;
       *       retval = PAPI_library_init(PAPI_VER_CURRENT);
       *       if (retval != PAPI_VER_CURRENT && retval > 0) {
       *	   fprintf(stderr,"PAPI library version mismatch!\n");
       *	   exit(1); }
       *       if (retval < 0)
       *	   handle_error(retval);
       *       retval = PAPI_is_initialized();
       *       if (retval != PAPI_LOW_LEVEL_INITED)
       *	   handle_error(retval)

       See Also:
	   PAPI_thread_init PAPI

       Generated automatically by Doxygen for PAPI from the source code.

Version 			 Tue Jun 17 2014		     PAPI_library_init(3)
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