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40 lines
1.4 KiB
40 lines
1.4 KiB
4 years ago
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NSDictionary *dictionary = @{
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@0: @"red", @1: @"green", @2: @"blue"
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};
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NSArray *array = @[@0, @1, @2, @YES, @'Z', @42U];
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NSArray *multilineArray = @[
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@0, @1, @2, @YES,
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@'Z', @42U
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];
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void main(int argc, const char *argv[])
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{
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// character literals.
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NSNumber *theLetterZ = @'Z'; // equivalent to [NSNumber numberWithChar:'Z']
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// integral literals.
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NSNumber *fortyTwo = @42; // equivalent to [NSNumber numberWithInt:42]
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NSNumber *fortyTwoUnsigned = @42U; // equivalent to [NSNumber numberWithUnsignedInt:42U]
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NSNumber *fortyTwoLong = @42L; // equivalent to [NSNumber numberWithLong:42L]
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NSNumber *fortyTwoLongLong = @42LL; // equivalent to [NSNumber numberWithLongLong:42LL]
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// floating point literals.
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NSNumber *piFloat = @3.141592654F; // equivalent to [NSNumber numberWithFloat:3.141592654F]
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NSNumber *piDouble = @3.1415926535; // equivalent to [NSNumber numberWithDouble:3.1415926535]
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// BOOL literals.
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NSNumber *yesNumber = @YES; // equivalent to [NSNumber numberWithBool:YES]
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NSNumber *noNumber = @NO; // equivalent to [NSNumber numberWithBool:NO]
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// Raw string literals
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NSString *rawString = [NSString stringWithFormat:@R"(embedded "quotes ")"];
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#ifdef __cplusplus
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NSNumber *trueNumber = @true; // equivalent to [NSNumber numberWithBool:(BOOL)true]
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NSNumber *falseNumber = @false; // equivalent to [NSNumber numberWithBool:(BOOL)false]
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#endif
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}
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