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12 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What type of variable is an "Integer"?
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A "Scaler" type.
Now define scaler type... |
A scaler is a type of variable that can contain a range of values. Hence, they scale.
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Define: int
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A 32-bit integer value (+/- values)
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A round 'Whole' number
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Define: unsigned int
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A 32-bit integer value (+ values only)
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A round 'Whole' number
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Define: float
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A 16-bit floating point value
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The term floating point refers to the fact that the radix point (decimal point, or, more commonly in computers, binary point) can "float"; that is, it can be placed anywhere relative to the significant digits of the number.
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Define: double
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A 32-bit floating point value
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The term floating point refers to the fact that the radix point (decimal point, or, more commonly in computers, binary point) can "float"; that is, it can be placed anywhere relative to the significant digits of the number.
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Define: long
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Depends on Architecture: 32 or 64 bit
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Define: long long
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Twice the size of a long
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Define: NSInteger
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Biggest Pointer size for your architecture
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Should be used for controlled variables for loops
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Define: NSUInteger
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Biggest Pointer size for your architecture.
Same asNSInteger, but unsigned. |
Should be used for controlled variables for loops
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Define: char
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A single character. Technically represented as an int. 'a'
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Define: BOOL
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A boolean value.
Should only be set to a YES or NO (Sometimes you can use a TRUE or FALSE, or a 1 or 0) |
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Define: SEL
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A selector or method signature. Typically gotten via @selector(methodName:)
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Can be used to pass method signatures around from class to class and perform operations.
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