Bidirectional map is associative data structure where keys and values can switch their roles.
Questions tagged [bimap]
85 questions
0
votes
1 answer
Is it legal to re-declare a member class after defining it?
I have a problem with compiling boost.bimap library. My test program is a blank main function and only one include directive(like #include ).
After some investigations I found out that preprocessor had made some interesting…
alex.demid
- 25
- 2
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votes
1 answer
Emboss bitmap on touch in android
I am developing color splash app. in which i use finger paint.
Now i want to emboss bitmap on touch event. i have one demo here in which when i apply emboss then it draw emboss path with red color but i want to emboss behind bitmap on…
Vaishali Vaghasiya
- 35
- 6
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votes
2 answers
BiMap single function to convert values to concatenated string value?
Is there something equivalent to get all keys (or inverses) from a bit map and concat each with a special character as a completely new string (without iterating through the map and building it manually?
private static final BiMap…
genxgeek
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1 answer
boost bimap set_of with user defined comparator
I plan to use my own compare function with boost bimap. The issue i am trying to address is when i use boost bimap with a pointer, the comparison should not compare the two pointers but should compare the class which is pointed by the pointer.
I…
helloworld
- 79
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0 answers
c++ boost insertion fails
I've defined boost::bimap-
typedef boost::bimap
<
boost::bimaps::unordered_set_of ,
boost::bimaps::unordered_set_of
> xBimap
each time i check whether i already have the value in the bimap -
// Take…
user1035931
- 21
- 4
0
votes
2 answers
Get key using value from a Map containing duplicate keys or values
I have a Map having duplicate values. I now want to get the key using value without iterating through all the Map.Entries. I have more than 500 entries in the map. I do not want to iterate the whole map each time.
I thought of using BiMap of google…
John
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1 answer
How can I properly relate multiple BiMap collections using shared keys?
I have the following BiMap collections:
BiMap accessIds = HashBiMap.create();
accessIds.put("FOO","accessId 1"); //This access Id is common to both FOO and BAR
BiMap merchants =…
Robert H
- 11,520
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2 answers
Passing a boost::bimap between functions
I'm new to the bimap functionality of the Boost libraries, and I'm having trouble passing a bimap into another function. My bimap looks like this:
typedef boost::bimap< int, int > bimap_type;
bimap_type bm;
I have an add_values() function that adds…
user1295558
- 117
- 9
-1
votes
1 answer
Write a bimap to binary file and then read it
I would like to know how to write a bimap which is actually too large( 180 million to 3000 million entries) to a binary file and then read to do some operation. To create a bimap I have the following code, where I created two streams to write and…
AwaitedOne
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4 answers
how to get key of the most nearest value of a given double value from an existing map
Since I need to get the key values of double value I' m using BiMap.
BiMapmapObj = HashBiMap.create();
mapObj.put("a1",3.58654);
mapObj.put("a2",4.1567);
mapObj.put("a3",4.2546);
For a particular value like 4.0156 I must get the key…
Shana Kalyan
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- 7