Units.hh File Reference

#include <string>
#include <memory>

Go to the source code of this file.

Classes
class	pism::units::System
struct	pism::units::DateTime
class	pism::units::Unit
class	pism::units::Converter

Namespaces
	pism
	pism::units

Functions
double	pism::units::convert (System::Ptr system, double input, const std::string &spec1, const std::string &spec2)
	Convert a quantity from unit1 to unit2. More...
bool	pism::units::are_convertible (const Unit &u1, const Unit &u2)

Detailed Description

This file contains thin wrappers around UDUNITS-2 objects. Nothing fancy. The only purpose is to simplify memory management for objects that are stored as data members of other C++ classes.

One thing is worth mentioning, though: in UDUNITS-2, every ut_unit object contains a pointer to the unit system that was used to create it.

We use C++ shared pointers to make sure that the system a Unit instance needs is allocated during the whole life span of this instance. (De-allocating the unit system too early results in having a "dangling" pointer.)

Definition in file Units.hh.