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Old 02-25-2004, 05:45 PM   #1
Longinus
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Registered: Sep 2003
Distribution: Redhat 9.0 && Slackware 9.1
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Question what is wrong with this pointer thingy


hi

i am new to pointers and i am having some trouble with this:

----------------------------------------------------
#include <iostream>
using namespace std;

typedef struct{
char alpha[26];
short num;
}MyStruct;

int main(){

MyStruct ms1;
MyStruct *pms1 = &ms1;

pms1->alpha = "abcdefghijklmnopqrstuvwxyz";
pms1->num = 5;


cout << "The memory address of num is: " << &(pms1->num) << endl;
cout<< "num is: " << pms1->num << endl;

return 0;
}
------------------------------------------------------

the error appears o nline 14 according to g++:

--------------------------------------------------
pointers7.cc: In function `int main()':
pointers7.cc:14: incompatible types in assignment of `const char[27]' to `
char[26]'
-----------------------------------------------

if anybody could tell me whats wrong that would be awesome

thanks
 
Old 02-25-2004, 06:13 PM   #2
ToniT
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Registered: Oct 2003
Location: Zurich, Switzerland
Distribution: Debian/unstable
Posts: 1,357

Rep: Reputation: 47
Your array is too sort, you have forgotten the null character.

Also you can't do array assignments this in C++, only in C. Use one of: strcpy (see man strcpy), char pointer instead of statically 27 characters or C++/STL string class

BTW: when pasting code and referring to line numbers, please pipe it through nl.
 
  


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