LinuxQuestions.org - [SOLVED] Invalid Conversion from...

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Invalid Conversion from...

Ok I'm gettin the "Invalid convertion from 'char*' to 'char'" thing. This is different from yer usual error because I'm actually working with pointers.
Here is a boiled down verstuon:
#includes
char* LOC = new char[501]; //This line had no errors
char ret[501]="This is 501 charecters in my program";
*LOC = ret; //This is where the error is
End code
Well anyone?
The heap data is deleted at the end of the program.

It would be better if you posted your code in [code][/code] tags from now on; it puts code in a box with a monospaced font:

Code:

#include <stdio.h>



int main(int argc,char** argv)

{

    printf("Like this.\n");

    return 0;

}

As to your problem, my C is a little rusty, but this is how I see it:

it looks to me like you're trying to assign the pointer to the first element of ret as the first element of LOC, not the elements themselves.

i.e.:

char* LOC = new char[501]; dynamically allocates 501 bytes of memory and assigns it to the pointer LOC.

char ret[501]="This is 501 charecters in my program"; allocates 501 bytes of memory on the heap and fills them with the values of the string "This is 501 charecters in my program".

*LOC = ret; is attempting to assign the pointer to the ret array as the dereferenced value of (i.e. the first element of) the LOC array, so you're implicitly converting from char* to char.

I think what you want to do is strcpy the contents of ret into where LOC points to. Something like:

Code:

char* LOC = new char[501];

char ret[501]="This is 501 charecters in my program";



strcpy(LOC,ret);

I sincerely apologize to all if I'm way off on this…I'm just trying to help. :scratch:

(…awaits abrasive correction from other, more knowledgable members…)

Are you using C or C++? I didn't think new was a keyword in C. If you're using C++, is there any reason you're not using C++ strings?

Edit: Also, is there any reason you don't have spell checking enabled in your browser? A lot of your posts contain typos.

I thought there wernt any poi ters in c. Well Using C++. I do have spell check and that's the problem; when you see me posting from a Mac I'm really posting from my iPod Touch (see! See! It will automatically capitalize any of it's products).
I need to use c-style strigns to work with filenames, using a normal string gets me an error.
Thanks peeps ya got the anwnswer!
Edit: I had no idea that the code tags existed in this forum.

If you need a C string, you can always use C++ strings to do any manipulation (e.g. concatenation) and then call the c_str() method. See this for a list of string's member functions.