#include <convert_units.h>
Conversions are performed by the convert() function and the conversion factors must be specified beforehand using the insert_cache() function.
If the GNU units command is not in the local path, the user may modify units_cmd_string to specify the full pathname. One can also modify units_cmd_string to specify a different units.dat
file.
Example:
convert_units cu; cu.insert_cache("in","cm",2.54); cout << "12 in is " << cu.convert("in","cm",12.0) << " cm. " << endl;
Definition at line 68 of file convert_units.h.
Data Structures | |
struct | unit_t |
The type for caching unit conversions. More... | |
Public Member Functions | |
virtual double | convert (std::string from, std::string to, double val) |
Return the value val after converting using units from and to . | |
int | insert_cache (std::string from, std::string to, double conv) |
Manually insert a unit conversion into the cache. | |
int | remove_cache (std::string from, std::string to) |
Manually remove a unit conversion into the cache. | |
int | print_cache () |
Print the present unit cache to std::cout. | |
int | energy_conv () |
Add conversion factors for energy equivalents. | |
Data Fields | |
int | verbose |
Verbosity (default 0). | |
bool | use_gnu_units |
(default true) | |
bool | err_on_fail |
(default true) | |
std::string | units_cmd_string |
Default 'units'. | |
Protected Types | |
typedef std::map< std::string, unit_t, string_comp > ::iterator | miter |
The iterator type. | |
Protected Attributes | |
std::map< std::string, unit_t, string_comp > | mcache |
The cache where unit conversions are stored. |
Documentation generated with Doxygen and provided under the GNU Free Documentation License. See License Information for details.
Project hosting provided by
,
O2scl Sourceforge Project Page