Re: return a string

Nascimento wrote:

Hello,

How to I do to return a string as a result of a function. I wrote the following function:

char prt_tralha(int num)
{
        int i;
        char tralha[num];

        tralha = "#";
        for( i = 0; i < num-1; i++ )
                strcpy(tralha, strcat(tralha,"#"));

        return tralha;
}

And I really like to use it, thus:

int main()
{
       printf("%s \n", prt_tralha(5));

       return 0;
}

But when I compile it, gcc shows this message:

tmp.c: In function `prt_tralha':
tmp.c:16: error: incompatible types in assignment
tmp.c:20: warning: return makes integer from pointer without a cast
tmp.c:20: warning: function returns address of local variable

Thanks,

Nascimento 

#include <stdio.h>
#include <stdlib.h>


const char * string_function(void)
{
  static const char * my_text = "My text";
  return my_text;
}

int main(void)
{
  printf("%s\n", string_function());
  return EXIT_SUCCESS;
}

Fundamentally, you pass a pointer to a string; not
the string.

--
Thomas Matthews

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