Re: Pointers to key and value of a map
On 10 Maj, 10:45, d.avitab...@gmail.com wrote:
Hi everybody,
I have defined a standard map as follows
map<int,double> nonzeroEntries;
because I wanted to take advantage of the container class. Now I have
a function with the following interface
myfunction( int * theIntegersInTheMap, double * theDoublesInTheMap);
therefore I need pointers to the key list and to the value list. Is
there any smart way to do this? At the moment I create two pointers
int * theIntegers = new int[sizeOfTheList];
double * theIntegers = new double[sizeOfTheList];
and fill them in, but this solution seems a bit redundant.
In case you didn't get it... I'm a total newbie in maps.
Sorry, but there's no easy way to do this, neither the keys not the
values are stored consecutive int the map (since it's node-based).
However if it is you who have written myfunction() and you want the
lists so that you can iterate over easily then you should use
std::map<int, double>::iterator instead.
--
Erik Wikstr=F6m