.TH "PAPI_num_events" 3 "Thu Dec 14 2023" "Version 7.1.0.0" "PAPI" \" -*- nroff -*-
.ad l
.nh
.SH NAME
PAPI_num_events \- Return the number of events in an event set\&.  

.SH SYNOPSIS
.br
.PP
.SH "Detailed Description"
.PP 
\fBPAPI_num_events()\fP returns the number of preset and/or native events contained in an event set\&. The event set should be created by \fBPAPI_create_eventset\fP \&.
.PP
\fBC Interface:\fP
.RS 4
#include <\fBpapi\&.h\fP> 
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int \fBPAPI_num_events(int  EventSet )\fP;
.RE
.PP
\fBParameters\fP
.RS 4
\fIEventSet\fP -- an integer handle for a PAPI event set created by \fBPAPI_create_eventset\fP\&. 
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\fI*count\fP -- (Fortran only) On output the variable contains the number of events in the event set
.RE
.PP
\fBReturn values\fP
.RS 4
\fIOn\fP success, this function returns the positive number of events in the event set\&. 
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\fIPAPI_EINVAL\fP The event count is zero; only if code is compiled with debug enabled\&. 
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\fIPAPI_ENOEVST\fP The EventSet specified does not exist\&.
.RE
.PP
\fBExample\fP
.RS 4

.PP
.nf
// Count the events in our EventSet 
printf(\\"%d events found in EventSet\&.\\\\n\\", PAPI_num_events(EventSet));

.fi
.PP
.RE
.PP
\fBSee also\fP
.RS 4
\fBPAPI_add_event\fP 
.PP
\fBPAPI_create_eventset\fP 
.RE
.PP


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