LArEM_Base_ID.cxx File Reference

Factor out code common between LArEM_ID and LArEM_SuperCell_ID. More...

#include <cmath>
#include "CaloIdentifier/LArEM_Base_ID.h"
#include "IdDict/IdDictDictionary.h"
#include "IdDict/IdDictField.h"
#include "IdDict/IdDictGroup.h"
#include "IdDict/IdDictMgr.h"
#include "IdDict/IdDictRegion.h"
#include "LArEM_region.h"
#include "CxxUtils/StrFormat.h"
#include "CxxUtils/trapping_fp.h"

Go to the source code of this file.

Functions
std::string	strformat (const char *fmt,...)
	return a std::string according to a format fmt and varargs

Detailed Description

Factor out code common between LArEM_ID and LArEM_SuperCell_ID.

Author

scott snyder snyde.nosp@m.r@bn.nosp@m.l.gov

Date

Aug, 2012

Definition in file LArEM_Base_ID.cxx.

Function Documentation

strformat()

std::string CxxUtils::strformat	(	const char *	fmt,
			... )

return a std::string according to a format fmt and varargs

Definition at line 49 of file StrFormat.cxx.

{
  char *buf = NULL;
  int nbytes = -1;
 
  va_list ap;
  va_start(ap, fmt); /* Initialize the va_list */
 
  nbytes = vasprintf(&buf, fmt, ap);
  va_end(ap); /* Cleanup the va_list */
 
  if (nbytes < 0) {
    /*buf is undefined when allocation failed
     * see: http://linux.die.net/man/3/asprintf
     */
    // free(buf); 
    throw std::runtime_error("problem while calling vasprintf");
  }
 
  CharLiberator guard(buf);
 
  // help compiler to apply RVO
  return std::string(buf);
}