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space_age: iteration 1, X-macros version

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This commit is contained in:
Dmitry Kokorin 2016-03-16 00:44:19 +03:00
parent af9aad2d97
commit 8d461d793e
1 changed files with 20 additions and 36 deletions
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56
cpp/space-age/space_age.cpp
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@ -2,6 +2,25 @@
namespace space_age {
#define PLANET_TABLE \
X(on_mercury, 0.2408467) \
X(on_venus, 0.61519726) \
X(on_mars, 1.8808158) \
X(on_jupiter, 11.862615) \
X(on_saturn, 29.447498) \
X(on_uranus, 84.016846) \
X(on_neptune, 164.79132)
#define X(a, b) \
double space_age:: a () const \
{ \
return on_earth() / b; \
}
PLANET_TABLE
#undef X
space_age::space_age(double seconds)
: seconds_(seconds)
{
@ -12,44 +31,9 @@ double space_age::seconds() const
return seconds_;
}
double space_age::on_earth() const
double space_age::on_earth() const
{
return seconds() / 31557600;
}
double space_age::on_mercury() const
{
return on_earth() / 0.2408467;
}
double space_age::on_venus() const
{
return on_earth() / 0.61519726;
}
double space_age::on_mars() const
{
return on_earth() / 1.8808158;
}
double space_age::on_jupiter() const
{
return on_earth() / 11.862615;
}
double space_age::on_saturn() const
{
return on_earth() / 29.447498;
}
double space_age::on_uranus() const
{
return on_earth() / 84.016846;
}
double space_age::on_neptune() const
{
return on_earth() / 164.79132;
}
}