please help

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please help

 
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  #1
Apr 17th, 2008
can anyone help me convert this to c++??
<?php
function show_me($info) {
$arr = array('fruit' => 'apple', 'car' => 'bmw');
return $arr[$info];
}

echo show_me('fruit');
//or echo show_me('car')
?>
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Re: please help

 
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  #2
Apr 17th, 2008
C++ Syntax (Toggle Plain Text) 
  1. std::map <std::string, std::string> array;
  2. array["fruit"] = "apple";
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Re: please help

 
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  #3
Apr 17th, 2008
Thanks!!!!
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Re: please help

 
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  #4
Apr 24th, 2008
ok, now how can i put all that array in a new array?
so that i can have more then 1 array["fruit"] = "apple";
??
to be array["fruit"] = apple;
array["fruit"] = strawberry;
array["car"] = bmw;
array["car"] = audi;

please help
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Re: please help

 
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  #5
Apr 24th, 2008
C++ Syntax (Toggle Plain Text) 
  1. std::map <std::string, std::vector<std::string> > array;
  2. array["fruit"].push_back( "apple" );
  3. array["fruit"].push_back( "pear" );
The STL has a whole set of goodies like this - http://www.sgi.com/tech/stl/
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Re: please help

 
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  #6
Apr 24th, 2008
really thanks for your big help, can i vote you somewhere or something like this?
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Re: please help

 
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  #7
May 14th, 2008
sorry for disturbing;
i have another question

i want to make a function len()

so can return the size of a vector
how can i make
C++ Syntax (Toggle Plain Text) 
  1.  
  2. int len( vector< any_type_of_vector(int,string....) array) {
  3.    return (int)array.size();
  4. }

thanks for your time
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Re: please help

 
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  #8
May 15th, 2008
Why would you want to make a function for that, when the size() function already exists?
Here's a code example of size() using Salem's demo-code:
cpp Syntax (Toggle Plain Text) 
  1.         std::map <std::string, std::vector<std::string> > array;
  2.         array["fruit"].push_back( "apple" );
  3.         array["fruit"].push_back( "pear" );
  4.  
  5.         cout << "The map 'array' has " << array.size() << " vector(s)\n";
  6.         cout << "The vector 'fruit' in map 'array' has " 
  7.                << array["fruit"].size() << " elements\n";
Last edited by niek_e; May 15th, 2008 at 3:52 am.
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Re: please help

 
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  #9
May 15th, 2008
thanks for the help, found in the end something;
well i need a function like that because i am using multiple types if arrays including array[] so to type everytime sizeof(array)/sizeof(int) takes more time then i desire, and know my code reached 2000 lines, and is not even done yet, hard to write every type of array.size()
so i made this:
C++ Syntax (Toggle Plain Text) 
  1. template <typename T>
  2. int len(vector< T > array) {
  3. 	return (int)array.size();
  4. }
  5.  
  6. int len(int *array) {
  7. 	int size = sizeof(array)/sizeof(int);
  8. 	return size;
  9. }

wich helps me a lot for doing:
C++ Syntax (Toggle Plain Text) 
  1. for(int i=0; i<len(array); i++) {
  2.  
  3. }

nice, isn't it?
tanks once again
Last edited by som3on3; May 15th, 2008 at 1:50 pm.
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