diff options
Diffstat (limited to 'usth/ICT2.2/labwork/3/C++/automobile.cc')
-rw-r--r-- | usth/ICT2.2/labwork/3/C++/automobile.cc | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/usth/ICT2.2/labwork/3/C++/automobile.cc b/usth/ICT2.2/labwork/3/C++/automobile.cc new file mode 100644 index 0000000..d274a60 --- /dev/null +++ b/usth/ICT2.2/labwork/3/C++/automobile.cc @@ -0,0 +1,56 @@ +#include <regex> +#include <stdexcept> +#include <string> + +#include "automobile.h" + +using namespace std; + +const regex license_pattern ("[0-9A-Z]+"); + +void +Automobile::set_license (string s) +{ + smatch m; + if (!regex_match (s, m, license_pattern)) + throw invalid_argument{"invalid license plate"}; + license = s; +} + +void +Automobile::set_fuel (double x) +{ + if (x < 0) + throw invalid_argument{"negative fuel"}; + fuel = x; +} + +void +Automobile::set_speed (double x) +{ + speed = (x < 0) ? 0 : x; +} + +Automobile::Automobile (string l, double f, double s) +{ + set_license (l); + set_fuel (f); + set_speed (s); +} + +void +Automobile::accelerate (double v) +{ + if (v < 0) + throw invalid_argument{"negative acceleration"}; + if (fuel) + set_speed (speed + v); +} + +void +Automobile::decelerate (double v) +{ + if (v < 0) + throw invalid_argument{"negative deceleration"}; + set_speed (speed - v); +} |