c - Unknown error regarding strings and stdio.h library -


i'm receiving uknown error found in stdio.h library. please can check @ tell me wrong code (but thing should work fine). p.s. i'm new here please don't blame me if bad question. code:

   #include <stdio.h>     #include <stdlib.h>      // conversion number string     char *i2s(int broj);      int main()     {         char string1;         int br, n;                 {             printf("how numbers?\n -"), scanf("%d", &n);         } while (n < 1);         (int = 0; < n; i++)         {             printf("\nbr = "), scanf("%d", &br);             string1 = *i2s(br);             printf(" %s", string1);         }         free(string1);         getch();         return 0;     }      char *i2s(int broj)     {         char *pom;         int z=0,br=0,p;         if (broj < 0)         {             z = 1;             broj = -broj;         }         p = broj;                 {             br++;             p /= 10;         } while (p);         pom = (char *)calloc(br + 1 + z, sizeof(char));         if (z)             pom[0] = '-';                 {             pom[--br + z] = '0' + broj % 10;         } while (broj /= 10);         return pom; } 

char string1; free(string1);

string 1 not pointer.

also following section overwrite string1 everytime run through loop. way have no pointer free() memory allocate inside function unless inside loop.

for (int = 0; < n; i++)     {         printf("\nbr = "), scanf("%d", &br);         string1 = *i2s(br);         printf(" %s", string1);     }

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