How to return a array string to main program

[darr01]

Hi guys. I have a function which needs to return a string (which is in an array)back to the main program.

The function prototype is:
char arrString(void);

char arrString()
{
char tempString1[15], tempString2[15];

statements...
statements...
strcpy(tempString1, tempString2);
return tempString1;
}

Somehow this doesn't work.

Any way how to do this? maybe using pointers?

Regards and thanks,

Darryl

 

[robertfleder]

char tempString1[15], tempString2[15];

allocates space on the call stack which is collapsed when the function returns. You need to malloc(3) space and return a pointer to the allocated space. The return should be of type char *.

The other thing that you can do is allocate the space from the caller and pass the array location to this routine (not really recommended).

 

[jamisar]

not all compiler are able to return a local-string:

main()
{
char *arrString(char *, char *);
char tempString1[15], tempString2[15];
printf("%s\n",arrString(tempString1,tempString2));
exit(0);

}
char *arrString(char *aa, char *bb)
{
statements...
statements...
strcpy(aa, bb);
return(aa);
}


-----------
when they don't ask you anymore, where they are come from, and they don't tell you anymore, where they go ... you'r getting older !

 

[darr01]

Thanks guys for the info.

Regards,

Darryl