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If I have a container ( vector , list , etc) where each element is a std::pair , is there an easy way to iterate over each element of each pair?
i.e.
std::vector<std::pair<int,int> > a; a.push_back(std::pair(1,3)); a.push_back(std::pair(2,...
Started by Shamster on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
You might want to consider using a Boost Tuple instead... .
No, there really isn't such a thing for std::pair .
To create your own iterator class, which pairs a flag indicating the within-pair position with your new iterator adaptor.
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Is it true that computers only need three of the four pairs to transmit data? I have the third pair on a very long wire, goes through conduit, etc. Can I switch one of the pairs and make it work?
edit:
It was the bluewhite and green pair.
Started by johnny on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at superuser):
Which pair died - what colors on the wires?
If the cable goes through conduit i would think.
If one pair went bad, you should be able to substitute another pair, but it isn't speed.
Four pairs.
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If I have a vector of pairs
std::vector<std::pair<int, int> > vec;
is there and easy way to sort the list in increasing order based on the second element of the pair?
I know I can write a little function object that will do the work, but is...
Started by David Norman on
, 6 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Less<T> > struct sort_pair_second { bool operator()(const std::pair<T1,T2>&left, const this too:
std::sort(v.begin(), v.end(), sort_pair_second<int, int>());
or even
std::sort(v.begin(), v.end(), sort_pair_second....
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Ask your Facebook Friends
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Pair programming appears to be a bit of a marmite topic. Personally I think it can be be a huge benefit if done correctly; but plenty of people, management especially, seem to see it as "wasting" a developer.
A good pairing could give you a good productivity...
Started by Steven Robbins on
, 10 posts
by 10 people.
Answer Snippets (Read the full thread at stackoverflow):
I've offered my team my support in using pair programming....
This exercise seems to work for this situation but they may not follow the "pair programming 101" manual or anything.
To do a little pair programming with the ABAP contractor.
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I'm currently working on a DNA database class and I currently associate each row in the database with both a match score (based on edit distance) and the actual DNA sequence itself, is it safe to modify first this way within an iteration loop?
typedef...
Started by Eric Scrivner on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
That would not be allowed....
Edit: I have a feeling that you were pair.
It is perfectly safe to modify the members of your pair, since the actual data in the pair does not affect the vector itself.
To answer your first question, yes.
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Pair vs. Pair: Pair The App Is Getting Sued By Pair Networks, The Hosting Company It was less than a week ago that Tenthbit, the developers of the buzzy, new social-networking-app-for-couples (or other partners) Pair , picked up a $4.2 million seed round...
Started by RSS FEED-from consistent brands on
, 1 posts
by 1 people.
Answer Snippets (Read the full thread at yourbrandplan):
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Pair vs. Pair: Pair The App Is Getting Sued By Pair Networks, The Hosting Company
It was less than a week ago that Tenthbit, the developers of the buzzy, new social-networking-app-for-couples (or other partners) Pair , picked up a $4.2 million seed round...
Started by mousemonkey on
, 1 posts
by 1 people.
Answer Snippets (Read the full thread at dealzoid):
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It was less than a week ago that Tenthbit, the developers of the buzzy, new social-networking-app-for-couples (or other partners) Pair , picked up a $4.2 million seed round, money the founders said would be used to expand its mobile development and design...
Started by aCronym on
, 1 posts
by 1 people.
Answer Snippets (Read the full thread at whysg):
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There's only ONE article of clothing, not two! FFS!
Started by SunnyD on
, 25 posts
by 14 people.
Answer Snippets (Read the full thread at anandtech):
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I am wanting to zip up a list of entities with a new entity to generate a list of coordinates (2-tuples), but I want to assure that for (i, j) that i < j is always true.
However, I am not extremely pleased with my current solutions:
from itertools ...
Started by jonwd7 on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
(Looking into that now....
Most recent version: def zipij7(m=mem, ms=mems): cpy = sorted(ms + [m]) loc = cpy.index(m) return zip(ms[:(loc)], repeat(m)) + zip(repeat(m), ms[(loc):])
Benches slightly faster for me than truppo's, slower by 30% than Michal's .
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