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Full Discussion: returning from a function
Top Forums Shell Programming and Scripting returning from a function Post 302226252 by jim mcnamara on Monday 18th of August 2008 03:09:00 PM
Old 08-18-2008
Return codes cannot be more than one eight bit byte can represent. Start with 0-127
If you need to return a string or some arbitrarily large number -

Code:
function func {

ret=5543
echo "Return code should be 5543"
echo "$ret"
}


return_value=$( func )
echo "return_value = $return_value"

 

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LEARN ABOUT CENTOS

papi_strerror

PAPI_strerror(3)						       PAPI							  PAPI_strerror(3)

NAME

       PAPI_strerror -

       Returns a string describing the PAPI error code.

SYNOPSIS

Detailed Description
       C Interface:
	   #include <papi.h>
	    char * PAPI_strerror( int errorCode );

       Parameters:
	   code -- the error code to interpret

       Return values:
	   *error -- a pointer to the error string.
	   NULL -- the input error code to PAPI_strerror() is invalid.

       PAPI_strerror() returns a pointer to the error message corresponding to the error code code. If the call fails the function returns the
       NULL pointer. This function is not implemented in Fortran.

       Example:

	   *  int ret;
	   *  int EventSet = PAPI_NULL;
	   *  int native = 0x0;
	   *  char error_str[PAPI_MAX_STR_LEN];
	   *
	   *  ret = PAPI_create_eventset(&EventSet);
	   *  if (ret != PAPI_OK)
	   *  {
	   *	 fprintf(stderr, "PAPI error %d: %s0, 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");
	   *	 fprintf(stderr,"PAPI_error %d: %s0, ret, error_str);
	   *	 exit(1);
	   *  }
	   *  // Start counting
	   *  ret = PAPI_start(EventSet);
	   *  if (ret != PAPI_OK) handle_error(ret);
	   *

       See Also:
	   PAPI_perror PAPI_set_opt PAPI_get_opt PAPI_shutdown PAPI_set_debug

Author
       Generated automatically by Doxygen for PAPI from the source code.

Version 5.2.0.0 						  Tue Jun 17 2014						  PAPI_strerror(3)
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