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/* File : example.h */
#define PI 3.141
#define DAY_MONDAY 0
#define DAY_TUESDAY 1
#define DAY_WEDNESDAY 2
#define DAY_THURSDAY 3
#define DAY_FRIDAY 4
#define DAY_SATURDAY 5
#define DAY_SUNDAY 6
enum color { BLUE, RED, GREEN };
#define CLB_BLACK 0
#define CLB_BLUE 1
#define CLB_RED 2
#define CLB_MAGENTA 3
#define CLB_GREEN 4
#define CLB_CYAN 5
#define CLB_YELLOW 6
#define CLB_WHITE 7
/* Using this would be good style
which cannot be expected for general C header files.
Instead I want to demonstrate how to live without it.
enum month {
MTHF_JANUARY,
MTHF_FEBRUARY,
MTHF_MARCH,
MTHF_APRIL,
MTHF_MAY,
MTHF_JUNE,
MTHF_JULY,
MTHF_AUGUST,
MTHF_SEPTEMBER,
MTHF_OCTOBER,
MTHF_NOVEMBER,
MTHF_DECEMBER,
}
*/
/* Since there are no compile time constants in C / C++
it is a common abuse
to declare bit set (flag) constants
as enumerations. */
enum calendar {
MTHB_JANUARY = 1 << 0, /* 1 << MTHF_JANUARY, */
MTHB_FEBRUARY = 1 << 1, /* 1 << MTHF_FEBRUARY, */
MTHB_MARCH = 1 << 2, /* 1 << MTHF_MARCH, */
MTHB_APRIL = 1 << 3, /* 1 << MTHF_APRIL, */
MTHB_MAY = 1 << 4, /* 1 << MTHF_MAY, */
MTHB_JUNE = 1 << 5, /* 1 << MTHF_JUNE, */
MTHB_JULY = 1 << 6, /* 1 << MTHF_JULY, */
MTHB_AUGUST = 1 << 7, /* 1 << MTHF_AUGUST, */
MTHB_SEPTEMBER = 1 << 8, /* 1 << MTHF_SEPTEMBER, */
MTHB_OCTOBER = 1 << 9, /* 1 << MTHF_OCTOBER, */
MTHB_NOVEMBER = 1 << 10, /* 1 << MTHF_NOVEMBER, */
MTHB_DECEMBER = 1 << 11, /* 1 << MTHF_DECEMBER, */
MTHB_SPRING = MTHB_MARCH | MTHB_APRIL | MTHB_MAY,
MTHB_SUMMER = MTHB_JUNE | MTHB_JULY | MTHB_AUGUST,
MTHB_AUTUMN = MTHB_SEPTEMBER | MTHB_OCTOBER | MTHB_NOVEMBER,
MTHB_WINTER = MTHB_DECEMBER | MTHB_JANUARY | MTHB_FEBRUARY,
};
namespace Answer {
enum {
UNIVERSE_AND_EVERYTHING = 42,
SEVENTEEN_AND_FOUR = 21,
TWOHUNDRED_PERCENT_OF_NOTHING = 0,
};
class Foo {
public:
Foo() { }
enum speed { IMPULSE = -2, WARP = 0, HYPER, LUDICROUS = 3};
void enum_test(speed s);
};
};
void enum_test(color c, Answer::Foo::speed s);
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