objective c - NSDictionary: Store 3 float values for every key -

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how can this? want store rgb color values can retrieved in response color name. c++ code uses boost unordered_map this:

("slateblue1", color(0.5137f, 0.4353f,1.0f))  ("tan3", color(0.8039f, 0.5216f, 0.2471f))  ("grey32", color(0.3216f, 0.3216f, 0.3216f))

color class stores 3 values. trying in objective-c tying me in knots , weird errors! of dictionary examples i've found matching 2 strings. of course can use c++ code in .mm file, if has ideas how achieve obj-c way, i'd pleased learn, thanks.

it's same in cocoa - use nsdictionary instead of unordered_map, nsstring instead of const char* key , uicolor instead of color object , you're done.

e.g., [nsdictionary dictionarywithobject: [uicolor redcolor] forkey: @"red"]] create single-entry map. adjust multiple colors , you're set. use nscolor if you're not on ios.

you might missing key point dictionary (almost) untyped collection, can store heterogenous set of object types using heterogenous set of key types.


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