Teuchos_VerbosityLevel.cpp

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#include "Teuchos_VerbosityLevel.hpp"
#include "Teuchos_Array.hpp"
#include "Teuchos_as.hpp"


namespace {


const Teuchos::Array<Teuchos::EVerbosityLevel> verbLevelArray =
  Teuchos::tuple<Teuchos::EVerbosityLevel>(
    Teuchos::VERB_NONE,
    Teuchos::VERB_LOW,
    Teuchos::VERB_MEDIUM,
    Teuchos::VERB_HIGH,
    Teuchos::VERB_EXTREME
    );


} // namespace



std::string Teuchos::toString(const EVerbosityLevel verbLevel)
{
  switch (verbLevel) {
  case VERB_DEFAULT:
    return "VERB_DEFAULT";
  case VERB_NONE:
    return "VERB_NONE";
  case VERB_LOW:
    return "VERB_LOW";
  case VERB_MEDIUM:
    return "VERB_MEDIUM";
  case VERB_HIGH:
    return "VERB_HIGH";
  case VERB_EXTREME:
    return "VERB_EXTREME";
  default:
    TEUCHOS_TEST_FOR_EXCEPTION(
       true, std::invalid_argument, "Teuchos::toString(const Teuchos::"
       "EVerbosityLevel): Input argument " << verbLevel << " has an invalid "
       "value.  Valid values are VERB_DEFAULT=" << VERB_DEFAULT << ", VERB_NONE"
       "=" << VERB_NONE << ", VERB_LOW=" << VERB_LOW << ", VERB_MEDIUM="
       << VERB_MEDIUM << ", VERB_HIGH=" << VERB_HIGH << ", AND VERB_EXTREME="
       << VERB_EXTREME << ".");
  }

  // NOTE (mfh 15 Sep 2014): Most compilers have figured out that the
  // return statement below is unreachable.  Some older compilers
  // might not realize this.  That's why the return statement was put
  // there, so that those compilers don't warn that this function
  // doesn't return a value.  If it's a choice between one warning and
  // another, I would prefer the choice that produces less code and
  // doesn't have unreachable code (which never gets tested).

  //return ""; // Never get here!
}


bool Teuchos::includesVerbLevel(
  const EVerbosityLevel verbLevel,
  const EVerbosityLevel requestedVerbLevel,
  const bool isDefaultLevel
  )
{
  return (
    ( as<int>(verbLevel) >= as<int>(requestedVerbLevel) )
    ||
    ( verbLevel == VERB_DEFAULT && isDefaultLevel )
    );
}


Teuchos::EVerbosityLevel
Teuchos::incrVerbLevel(
  const EVerbosityLevel inputVerbLevel,
  const int numLevels
  )
{
  if (inputVerbLevel == VERB_DEFAULT)
    return VERB_DEFAULT;
  if (inputVerbLevel == VERB_EXTREME)
    return VERB_EXTREME;
  const int intVerbLevel = as<int>(inputVerbLevel) + numLevels;
  if (intVerbLevel < as<int>(VERB_NONE))
    return VERB_NONE;
  else if (intVerbLevel > as<int>(VERB_EXTREME))
    return VERB_EXTREME;
  // If we get here, then intVerbLevel is a valid verbosity level.
  return verbLevelArray[intVerbLevel];
}