.TH "PAPI_perror" 3 "Thu Nov 17 2016" "Version 5.5.1.0" "PAPI" \" -*- nroff -*-
.ad l
.nh
.SH NAME
PAPI_perror \- 
.PP
Produces a string on standard error, describing the last library error\&.  

.SH SYNOPSIS
.br
.PP
.SH "Detailed Description"
.PP 

.PP
\fBC Interface:\fP
.RS 4
#include <\fBpapi\&.h\fP> 
.br
 void \fBPAPI_perror( char *s )\fP;
.RE
.PP
\fBParameters:\fP
.RS 4
\fIs\fP -- Optional message to print before the string describing the last error message\&.
.RE
.PP
The routine \fBPAPI_perror()\fP produces a message on the standard error output, describing the last error encountered during a call to PAPI\&. If s is not NULL, s is printed, followed by a colon and a space\&. Then the error message and a new-line are printed\&.
.PP
\fBExample:\fP
.RS 4

.PP
.nf
*  int ret;
*  int EventSet = PAPI_NULL;
*  int native = 0x0;
*
*  ret = PAPI_create_eventset(&EventSet);
*  if (ret != PAPI_OK)
*  {
*     fprintf(stderr, \"PAPI error %d: %s\\n\", ret, PAPI_strerror(retval));
*     exit(1);
*  }
*  // Add Total Instructions Executed to our EventSet
*  ret = PAPI_add_event(EventSet, PAPI_TOT_INS);
*  if (ret != PAPI_OK)
*  {
*     PAPI_perror( "PAPI_add_event" );
*     exit(1);
*  }
*  // Start counting
*  ret = PAPI_start(EventSet);
*  if (ret != PAPI_OK) handle_error(ret);
*  

.fi
.PP
.RE
.PP
\fBSee Also:\fP
.RS 4
\fBPAPI_strerror\fP 
.RE
.PP


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