Documentation for Ice 3.5. The latest release is Ice 3.7. Refer to the space directory for other releases.

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 24 Next »

Slice constant definitions map to corresponding Objective?C constant definitions. For example:

Slice
const bool      AppendByDefault = true;
const byte      LowerNibble = 0x0f;
const string    Advice = "Don't Panic!";
const short     TheAnswer = 42;
const double    PI = 3.1416;

enum Fruit { Apple, Pear, Orange };
const Fruit     FavoriteFruit = Pear;

Here are the generated definitions for these constants:

Objective-C
static const BOOL EXAppendByDefault = YES;
static const ICEByte EXLowerNibble = 15;
static NSString * const EXAdvice = @"Don't Panic!";
static const ICEShort EXTheAnswer = 42;
static const ICEDouble EXPI = 3.1416;

typedef enum {
    EXApple, EXPear, EXOrange
} EXFruit;
static const EXFruit EXFavoriteFruit = EXPear;

All constants are initialized directly in the generated header file, so they are compile-time constants and can be used in contexts where a compile-time constant expression is required, such as to dimension an array or as the case label of a switch statement.

See Also
  • No labels