what is wrong with my copy function?

[yaoc1987]

hello everyone

im writing a program for "sequence class with dynamic arrays"
every time i compile it gives me this error:

1>c:\documents and settings\yue jiang\desktop\s pring 2010\csc 212\hw\hw #3\sequence2.cx x(30) : error C3861: 'copy': identifier not found
1>c:\documents and settings\yue jiang\desktop\s pring 2010\csc 212\hw\hw #3\sequence2.cx x(53) : error C3861: 'copy': identifier not found
1>c:\documents and settings\yue jiang\desktop\s pring 2010\csc 212\hw\hw #3\sequence2.cx x(141) : error C3861: 'copy': identifier not found

i believe all 3 is the same
to use copy i know i have to include algorithm

here is my copy function codes used in this program:

sequence::sequence(const sequence& source)
      {//copy constructor
      
         data= new value_type[source.capacity];
         capacity = source.capacity;
         used = source.used;
         current_index = source.current_index;
         copy(source.data, source.data + used, data);
      
      }

void sequence::resize(size_type new_capacity)
      {//changes capacity accordingly
      
         value_type* larger_array;
      
         if(new_capacity == capacity)
            return;
      
         if(new_capacity < used)
            new_capacity = used;
      
         larger_array = new value_type[new_capacity];
         copy(data, data + used, larger_array);
         delete [] data;
         data = larger_array;
         capacity = new_capacity;
      
      }

void sequence::operator = (const sequence& source)
      {//modify =
      
         value_type* new_data;
      
         if(this == &source)
            return;
      
         if(capacity != source.capacity)
         {
            new_data = new value_type[source.capacity];
            delete [] data;
            data = new_data;
            capacity = source.capacity;
         }
      
         used = source.used;
         current_index = source.current_index;
         copy(source.data, source.data+used, data);
      
      }

ive look through the whole thing and everything seem correct to me
anyone can help me out n spot my mistake...

thanks in advance

[Banfa]

Do you include the algorithm header in your code?

#include <algorithm>

Do you enable the standard namespace?

using namespace std;

[yaoc1987]

definitely

i included the <algorithm> and the others in the test file, header file, and implementation file but somehow i still get this error

my brother told me it could be the parameters of the copy function but i checked already the parameters are correct

sigh... hopefully my professor will grade according to the codes and not just whether the program works...

[weaknessforcats]

Maybe you could post the .cxx file so we can see what you included.