character array and vector

how do i store character array in vector

Code:

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#include<iostream>
#include<queue>
#include<vector>
#include<string>
using namespace std;
int main()
{
    char *s;
vector</*how do i define*/>v;
vector</*how do i define*/>::iterator it;

   
    char alts[10];
    for(int i=0;i<5;i++)
    {
    scanf("%s",alts);
  v.push_back(alts);
}
for ( it=myvector.begin() ; it < myvector.end(); it++ )
    cout << " " << *it;

 
 
    return 0;
}

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How about vector< char >? Yes, it really is that simple! Just keep in mind that push_back stores a single element. To concatenate 'alts' to 'myvector', you'll need to use the 'insert' member function. Oh, and you really shouldn't be mixing scanf with C++ streams (and anyway, they can do all of that and more). Also, another option is to just use an std::string - you can pass it to std::getline, and concatenate with the += operator, etc...

Try replacing /* how do i define*/ with string.

Even better, try using cin (the C++ stream that allows reading from standard input) rather than scanf(). There are specific operations that allow C++ strings to be read from C++ istreams, and no danger of overflowing arrays of char.

Also, in the loop to output the vector, the end condition will often be brtter expressed as "it != myvector.end()"

i would like to store an array of chars
eg:
ABC
DEF

Moreover my requirement is to use scanf

To convert an array of char to vector of char:

Code:

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char array[ N ] = { ... };
std::vector< char > vec( array, array + N );

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If reading from a stream, then...

Code:

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#include <iterator>

std::cin >> std::noskipws;
std::vector< char > vec( std::istream_iterator< char >( std::cin ), std::istream_iterator< char >() );

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Quote:

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Originally Posted by dpp

i would like to store an array of chars
eg:
ABC
DEF

Moreover my requirement is to use scanf

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Seems like a completely contrived/artificial requirement to me.

In any event, the first line of my previous post will meet your original requirement. A std::string contains a representation of an array of chars.