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.TH "PAPI_library_init" 3 "Thu Feb 27 2020" "Version 6.0.0.0" "PAPI" \" -*- nroff -*-
.ad l
.nh
.SH NAME
PAPI_library_init \-
.PP
initialize the PAPI library\&.
.SH SYNOPSIS
.br
.PP
.SH "Detailed Description"
.PP
.PP
.nf
@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:
.fi
.PP
.PP
.nf
* int retval;
* retval = PAPI_library_init(PAPI_VER_CURRENT);
* if (retval != PAPI_VER_CURRENT && retval > 0) {
* fprintf(stderr,"PAPI library version mismatch!\en");
* exit(1); }
* if (retval < 0)
* handle_error(retval);
* retval = PAPI_is_initialized();
* if (retval != PAPI_LOW_LEVEL_INITED)
* handle_error(retval)
*
.fi
.PP
.PP
\fBSee Also:\fP
.RS 4
\fBPAPI_thread_init\fP PAPI
.RE
.PP
.SH "Author"
.PP
Generated automatically by Doxygen for PAPI from the source code\&.
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