.TH "PAPI_add_event" 3 "Thu Dec 14 2023" "Version 7.1.0.0" "PAPI" \" -*- nroff -*-
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.SH NAME
PAPI_add_event \- add PAPI preset or native hardware event to an event set  

.SH SYNOPSIS
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.PP
.SH "Detailed Description"
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.PP
\fBC Interface:\fP
.RS 4
#include <\fBpapi\&.h\fP> 
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int \fBPAPI_add_event( int  EventSet, int  EventCode )\fP;
.RE
.PP
\fBPAPI_add_event\fP adds one event to a PAPI Event Set\&. 
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A hardware event can be either a PAPI preset or a native hardware event code\&. For a list of PAPI preset events, see PAPI_presets or run the avail test case in the PAPI distribution\&. PAPI presets can be passed to \fBPAPI_query_event\fP to see if they exist on the underlying architecture\&. For a list of native events available on current platform, run the papi_native_avail utility in the PAPI distribution\&. For the encoding of native events, see \fBPAPI_event_name_to_code\fP to learn how to generate native code for the supported native event on the underlying architecture\&.
.PP
\fBParameters\fP
.RS 4
\fIEventSet\fP An integer handle for a PAPI Event Set as created by \fBPAPI_create_eventset\fP\&. 
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\fIEventCode\fP A defined event such as PAPI_TOT_INS\&.
.RE
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\fBReturn values\fP
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\fIPositive-Integer\fP The number of consecutive elements that succeeded before the error\&. 
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\fIPAPI_EINVAL\fP One or more of the arguments is invalid\&. 
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\fIPAPI_ENOMEM\fP Insufficient memory to complete the operation\&. 
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\fIPAPI_ENOEVST\fP The event set specified does not exist\&. 
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\fIPAPI_EISRUN\fP The event set is currently counting events\&. 
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\fIPAPI_ECNFLCT\fP The underlying counter hardware can not count this event and other events in the event set simultaneously\&. 
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\fIPAPI_ENOEVNT\fP The PAPI preset is not available on the underlying hardware\&. 
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\fIPAPI_EBUG\fP Internal error, please send mail to the developers\&. 
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\fIPAPI_EMULPASS\fP Event exists, but cannot be counted due to multiple passes required by hardware\&.
.RE
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\fBExamples:\fP
.RS 4

.PP
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int EventSet = PAPI_NULL;
unsigned int native = 0x0;
if ( PAPI_create_eventset( &EventSet ) != PAPI_OK )
handle_error( 1 );
// Add Total Instructions Executed to our EventSet
if ( PAPI_add_event( EventSet, PAPI_TOT_INS ) != PAPI_OK )
handle_error( 1 );
// Add native event PM_CYC to EventSet
if ( PAPI_event_name_to_code( "PM_CYC", &native ) != PAPI_OK )
handle_error( 1 );
if ( PAPI_add_event( EventSet, native ) != PAPI_OK )
handle_error( 1 );

.fi
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.RE
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\fBSee also\fP
.RS 4
\fBPAPI_cleanup_eventset\fP 
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\fBPAPI_destroy_eventset\fP 
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\fBPAPI_event_code_to_name\fP 
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\fBPAPI_remove_events\fP 
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\fBPAPI_query_event\fP 
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PAPI_presets 
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PAPI_native 
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\fBPAPI_remove_event\fP 
.RE
.PP


.SH "Author"
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Generated automatically by Doxygen for PAPI from the source code\&.