Declaration and Initialization: can it be done seperately

[Digital Don]

Hi,

I am trying to declare a Global String Array pointer

 string **matchedWires;
 

and initialize it in themain function after I get the size of it

 **matchedWires = new string*[noofwires];

I get the following error when I try to compile doin like this

 
GaleShapely.cpp: In function âint main(int, char**)â:
GaleShapely.cpp:68: error: no match for âoperator=â in â* * matchedWires = (std::string**)operator new []((((long unsigned int)noofwires) * 8u))â
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/basic_string.h:485: note: candidates are: std::basic_string<_CharT, _Traits, _Alloc>& std::basic_string<_CharT, _Traits, _Alloc>::operator=(const std::basic_string<_CharT, _Traits, _Alloc>&) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/basic_string.h:493: note:                 std::basic_string<_CharT, _Traits, _Alloc>& std::basic_string<_CharT, _Traits, _Alloc>::operator=(const _CharT*) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>]
/usr/lib/gcc/x86_64-redhat-linux/4.1.2/../../../../include/c++/4.1.2/bits/basic_string.h:504: note:                 std::basic_string<_CharT, _Traits, _Alloc>& std::basic_string<_CharT, _Traits, _Alloc>::operator=(_CharT) [with _CharT = char, _Traits = std::char_traits<char>, _Alloc = std::allocator<char>] <near match>
$
 
 

Can anyone tell me a method of Globall declaring a string like this and then initializing locally after I get to know the size of it?

Thank You in Advance.

Regards

[weaknessforcats]

**matchedWires = new string*[noofwires];

This is not correct. It should be:

matchedWires = new string*[noofwires];
 

BTW: This is not how you create a 2D array of strings, if that's where you are heading.

Also, why a global???
Read this: http://www.thescripts.com/forum/thread737451.html.

[Digital Don]

Thank You for the correct solution and also the description of why we should use less of Global variables...

I have changed my program to have it as LOCAL instead of Global now..

Thank You again
---------------------------------------------------------------

This is not correct. It should be:

matchedWires = new string*[noofwires];
 

BTW: This is not how you create a 2D array of strings, if that's where you are heading.

Also, why a global???
Read this: http://www.thescripts.com/forum/thread737451.html.